To see the other types of publications on this topic, follow the link: Bluetooth wireless technology.

Dissertations / Theses on the topic 'Bluetooth wireless technology'

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 41 dissertations / theses for your research on the topic 'Bluetooth wireless technology.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Dolz, Patrick. "Wireless sensor data transfer using bluetooth technology." Master's thesis, University of Cape Town, 2005. http://hdl.handle.net/11427/5273.

Full text
Abstract:
Bibliography: leaves 70-72.
The objective of this thesis is to design and program an application for the Linux based Axis Etrax100LX developer board using the C programming language. This application will collect sensor data (4-20mA signals as the standard analog inputs and 0-5V as the digital inputs) from the serial port of the Etrax100LX developer board, save them to a file on the developer board and make this data available for remote access. The idea behind using the Etrax100LX development board and writing software for it is to build a wireless, web-based monitoring system for electrical and mechanical rotating machineray which makes the data available for remote access. Bluetooth is a wireless, data transmission technology [13] designed specifically for use in Personal Area Networks (PANs) where up to seven Bluetooth enabled computing devices such as Personal Computers and Personal Digital Assistants (PDAs) can form either a Group ad-hoc Network (GN or Bluetooth Piconet) or a network where one of them acts as a proxy, router or bridge (Network Access Point, NAP) between and existing network inftrastructure (typically LAN) and the other Bluetooth devices [14].
APA, Harvard, Vancouver, ISO, and other styles
2

Aljuaied, Ali M. "Generic Bluetooth data module." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2002. http://library.nps.navy.mil/uhtbin/hyperion-image/02sep%5FAljuaied.pdf.

Full text
Abstract:
Thesis (M.S. in Computer Science and M.S. in Engineering Science (EE))--Naval Postgraduate School, June 2002.
Thesis advisor(s): Xiaoping Yun, Baer Wolfgang. Includes bibliographical references (p. 57-58). Also available online.
APA, Harvard, Vancouver, ISO, and other styles
3

Liu, Xiaoning. "Bluetooth information exchange network." Click here to access this resource online, 2008. http://hdl.handle.net/10292/722.

Full text
Abstract:
Bluetooth is a low cost and low power wireless technology for connecting portable and / or fixed Bluetooth enabled devices to form short-range wireless ad hoc personal area networks (PANs). As the Bluetooth specification does not specify a protocol to form ad hoc Bluetooth networks, a method for forming an efficient Bluetooth network under a practical networking scenario is still an open research problem. This thesis introduces an approach to implement an indoor ad hoc Bluetooth wireless network, Bluetooth information exchange network (BIEN). This network formation is based on Bluetooth and Java technologies. A set of Bluetooth enabled devices configured with the BIEN software application are able to spontaneously establish a dynamic multi-hop wireless network using Bluetooth technology without the need of formal network infrastructure, centralized administration, fixed routers or access points. In this study, the performance evaluation focuses on the relation between network capacity and topology by testing end-to-end performance in terms of throughput and the latency of communication links with various parameters, including the hop number between nodes and the number of slaves in piconets. The evaluation results show that the throughput reduces with the increased length of a path, and with an increase in the number of slaves in a piconet in the network. The latency also increases with path length, and with the number of slaves in a piconet in the different experimental BIENs, whether if there is traffic or not in the networks. Experimental results have further confirmed the necessity to minimize the number of bridge nodes in the Bluetooth networks due to their traffic bottleneck effect. This work is an attempt at implementation of a distributed multi-hop scatter net with an integrated routing protocol in the practical environments, while most of the literature focuses on covering the modelling of it. It intends to demonstrate how Bluetooth technology with Java technology can be used to design, develop and deploy ad hoc wireless networks with the commercial Bluetooth devices, and examine how well Bluetooth technology supports ad hoc multi-hop wireless network technology.
APA, Harvard, Vancouver, ISO, and other styles
4

Box, Stephanie. "Arterial roadway traffic data collection using bluetooth technology." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/42778.

Full text
Abstract:
The use of Bluetooth technology for gathering traffic data is becoming increasingly popular due to the large volume of data that can be gathered at a relatively low cost. The limited number of devices in discoverable mode and potential long discovery time of the Bluetooth devices creates an opportunity for evaluating the sensor array setup that can maximize the sample of devices identified. This thesis investigates several factors that have a significant impact on the quality of the data obtained using Bluetooth, including the number of Bluetooth readers, orientation of the Bluetooth antennas, position of the readers relative to one another, and the location of the Bluetooth stations. The thesis begins with an overview of Bluetooth technology and literature review on the use of Bluetooth in previous traffic studies. Next, the methodology for the setup of the Bluetooth system and the four tests performed to evaluate the factors affecting the quality of the data are described. Through the results of these tests, it was observed that a "flat" antenna orientation allows for the greatest detection range and that the walls of buildings can prevent detection of Bluetooth devices inside the buildings. In addition, using multiple Bluetooth readers per sensor array resulted in statistically significant increases in number of detections of single reader sensors, and horizontally separated sensor arrays were observed to be more effective than vertically separated sensor arrays. Finally, the thesis concludes with a summary of findings and a discussion of further research needs.
APA, Harvard, Vancouver, ISO, and other styles
5

Ko, Wai Sun. "Innovation on Bluetooth intra-piconet scheduling algorithms /." View Abstract or Full-Text, 2003. http://library.ust.hk/cgi/db/thesis.pl?COMP%202003%20KO.

Full text
Abstract:
Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2003.
Includes bibliographical references (leaves 74-77). Also available in electronic version. Access restricted to campus users.
APA, Harvard, Vancouver, ISO, and other styles
6

Ree, Leon P. "Integration of GPS navigation with mobile telephone communications using Bluetooth wireless technology." Thesis, Queensland University of Technology, 2002. https://eprints.qut.edu.au/36167/1/36167_Ree_2002.pdf.

Full text
Abstract:
This thesis examines Bluetooth wireless technology, a technology for low-cost, low-range and low-power transfer of data between electronic devices. It overviews the technology by providing the history behind its development and then covers the various layers of its protocol. The uses of the technology, as specified during its development, are also presented. The future direction of Bluetooth wireless technology is summarised and a brief overview of some its main competitors is given. The main contribution of this thesis is a system that has been developed using Bluetooth wireless technology to transfer location information from a GPS receiver to a mobile telephone handset. Such a system cannot be currently purchased as an "off the shelf" item. This system provides the user of a mobile handset with location information without the need for a separate handheld device. The design of both the hardware and software for implementing this system is described. The system has been successfully built and tested and is to be commercialised.
APA, Harvard, Vancouver, ISO, and other styles
7

Ekström, Peter, and Fredrik Hoel. "Audio over Bluetooth and MOST." Thesis, Linköping University, Department of Science and Technology, 2002. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1200.

Full text
Abstract:

In this Master Thesis the possibility of connecting standard products wirelessly to MOST, a multimedia network for vehicles, is investigated. The wireless technique analysed is Bluetooth. The report theoretically describes how MOST could be integrated with Bluetooth via a gateway. Future scenarios that are made possible by this gateway are also described. The solution describes how a connection could be established and how the synchronous audio is transferred from a Bluetooth sound source to the MOST network.


I detta examensarbete studeras möjligheten att ansluta standardprodukter trådlöst till MOST, ett multimedianätverk för fordon. Den trådlösa tekniken som analyseras är Bluetooth. Rapporten beskriver teoretiskt hur MOST ska integreras med Bluetooth via en gateway och tar även upp olika framtida scenarier som möjliggörs med hjälp av denna gateway. Lösningen beskriver hur en förbindelse kan upprättas och ljuddata överföras från en ljudkälla till MOST-nätet med hjälp av Bluetooth-teknik.

APA, Harvard, Vancouver, ISO, and other styles
8

Perchalski, Steven Joseph. "Shipboard sensor closed-loop calibration using wireless LANs and DataSocket transport protocols." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Jun%5FPerchalski.pdf.

Full text
Abstract:
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, June 2003.
Thesis advisor(s): Xiaoping Yun, Fotis Papoulias. Includes bibliographical references (p. 81-82). Also available online.
APA, Harvard, Vancouver, ISO, and other styles
9

Silva, Eusebio Pedro da. "Network-based control, monitoring and calibration of shipboard sensors." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03sep%5FSilva.pdf.

Full text
Abstract:
Thesis (M.S. in Electrical Engineering)--Naval Postgraduate School, September 2003.
Thesis advisor(s): Xiaoping Yun, Fotis Papoulias. Includes bibliographical references (p. 61-62). Also available online.
APA, Harvard, Vancouver, ISO, and other styles
10

Zinner, Stephanie. "A methodology for using bluetooth to measure real-time work zone travel time." Thesis, Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45936.

Full text
Abstract:
This thesis seeks to provide guidance on the deployment of Bluetooth sensors for travel time measurement in work zone corridors. The investigation focuses on the detection characteristics of Class 1 and Class 2 Bluetooth devices, and how cultivating an understanding of these characteristics together with the effect of the sensor inquiry cycle length can suggest a more precise method of travel time measurement. This thesis also explores the range of detection location around a Bluetooth sensor in order to recommend a minimum corridor separation of Bluetooth sensors, and to ascertain the best method of Bluetooth travel time derivation. Finally, this thesis investigates these principles further through multiple side-fire deployments on the I-285 corridor in Atlanta, Georgia; as well as two deployments capturing several hours of active work zone travel time.
APA, Harvard, Vancouver, ISO, and other styles
11

Nilsson, Emil, and Tommy Lindman. "Implementation and evaluation of Bluetooth Low Energy as a communication technology for wireless sensor networks." Thesis, Linköpings universitet, Interaktiva och kognitiva system, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-138672.

Full text
Abstract:
As the growth and enthusiasm for IoT increases, energy consumption and efficiency is of immense importance in order to develop maintainable and dependable sensor networks. In this thesis, we implement and evaluate a wireless sensor network using Bluetooth Low Energy (BLE) as the communication standard with regards to energy consumption and range capabilities. We found BLE to be a highly viable option for such systems, yielding long battery life for systems where long-range capabilities are not needed.
APA, Harvard, Vancouver, ISO, and other styles
12

Cheung, Kin Pong. "Performance evaluation of scheduling algorithms on Bluetooth piconet and scatternet network /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?COMP%202002%20CHEUNG.

Full text
Abstract:
Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2002.
Includes bibliographical references (leaves 63-66). Also available in electronic version. Access restricted to campus users.
APA, Harvard, Vancouver, ISO, and other styles
13

Wang, Yinan. "An Implementation of Consensus Through Bluetooth Communication." Thesis, University of North Texas, 2014. https://digital.library.unt.edu/ark:/67531/metadc500099/.

Full text
Abstract:
This thesis provides an implementation of consensus of multi-agent networked systems. Consensus problem is an important issue of distributed computing and has various algorithms and applications in the field of electronical and computer science. The consensus requests all nodes of a network reach an agreement over a certain measurement. An algorithm of convergent consensus problem is implemented through a small network of Bluetooth communication in the thesis. The connections of the Bluetooth devices are wireless, and the device nodes of the network are driven by C++ software and Winsock API. The simulation results show that the implementation completes all the requirements of the distributed consensus algorithm.
APA, Harvard, Vancouver, ISO, and other styles
14

Vo, Trung. "An investigation of bluetooth technology for measuring travel times on arterial roads: a case study on spring street." Thesis, Georgia Institute of Technology, 2011. http://hdl.handle.net/1853/39597.

Full text
Abstract:
Research in the field of travel time measurement using Bluetooth technology has been an area of great interest in recent years as transportation professionals strive to increase the cost-effectiveness, accuracy, anonymity, and safety of travel time data collection methods. Commonly used travel time data collection methods include the use of inductive loops, video cameras, and probe vehicles. However, Bluetooth, a globally accepted wireless technology, serves as the medium being utilized by more and more transportation consultants, public agencies, and academics in the collection of travel time data. This study seeks to develop a methodology for measuring travel times on arterial roads using Bluetooth technology. A literature review of general travel time methods and Bluetooth travel time methods was conducted to provide the context for a Bluetooth field deployment development and implementation. The study presents the deployment plan and data analysis of a case study conducted on Spring Street in Atlanta, Georgia. Variable heights, Bluetooth to Bluetooth interference, and detection of Bluetooth devices in probe vehicles are investigated and recommendations are suggested for future Bluetooth travel time studies.
APA, Harvard, Vancouver, ISO, and other styles
15

Vaswani, Mohit Suresh. "BLE Controller Module for Wireless Sensor Networks." Thesis, University of North Texas, 2017. https://digital.library.unt.edu/ark:/67531/metadc1011776/.

Full text
Abstract:
Sensors have been an integral part of our life since a long time. Traditionally, the transmit information to a data collection center through a physical wire. However, with the introduction of Bluetooth Low Energy (BLE) communication protocol, more research is being done into the field of wireless sensor networks (WSN). BLE was introduced to target low power applications. The CC2650 Launchpad designed by Texas Instruments (TI) can lead to a bulky final product. The aim was to design hardware for the CC2650 micro-controller with the aim of making it more compact for use in WSNs. A top-down approach was used wherein the available product is studied to identify the redundant and reverse engineer it to design a new product. A 2 layer printed circuit board (PCB) was designed which resulted in a 64 percent decrease in size compared to the Launchpad. Also, experiments were performed to test the proof of concept.
APA, Harvard, Vancouver, ISO, and other styles
16

Raghavan, Anand. "Interference cancellation for collocated wireless radios." Diss., Available online, Georgia Institute of Technology, 2007, 2007. http://etd.gatech.edu/theses/available/etd-06272007-234911/.

Full text
Abstract:
Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2008.
Laskar, Joy, Committee Chair ; Cressler, John, Committee Member ; Kornegay, Kevin, Committee Member ; Tentzeris, Emmanouil, Committee Member ; Lee, Chang-Ho, Committee Member.
APA, Harvard, Vancouver, ISO, and other styles
17

Yip, Hoi-kit, and 葉海傑. "Packet scheduling techniques for coordinating colocated Bluetooth and IEEE 802.11b in a Linux machine." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2004. http://hub.hku.hk/bib/B29727285.

Full text
APA, Harvard, Vancouver, ISO, and other styles
18

Pendli, Pavan Kumar [Verfasser]. "Contribution of Modelling and Analysis of Wireless Communication for Safety related Systems with Bluetooth Technology / Pavan Kumar Pendli." Kassel : Kassel University Press, 2014. http://d-nb.info/1065688385/34.

Full text
APA, Harvard, Vancouver, ISO, and other styles
19

Veverka, David. "Projekt Pretrigger." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-221105.

Full text
Abstract:
Práce se zabývá návrhem stabilního a rychlého bezdrátového spojení mezi dvěma body. K vytvoření tohoto spojení bude použita technologie Bluetooth a nebo její moderní alternativy vzhledem k tomu, že tato technologie již byla v daném pracovním prostředí testována a byla prokázána její stabilita. V této práci a v navazující diplomové práci budou diskutovány výsledky časových analýz zvolených senzorů, komunikace mezi senzorem a zvoleným mikrokontrolerem a nakonec návrh kompletního řešení, na jehož základě bude vytvořen funkční prototyp požadovaného zařízení.
APA, Harvard, Vancouver, ISO, and other styles
20

Metingu, Kivanc. "Wireless communications infrastructure for collaboration in common space." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2004. http://library.nps.navy.mil/uhtbin/hyperion/04Mar%5FMetingu.pdf.

Full text
APA, Harvard, Vancouver, ISO, and other styles
21

Khatib, Amer. "A Novel and an Efficient Design of an Inverted F-Antenna for Bluetooth Low Energy Communications." Thesis, Högskolan i Halmstad, Akademin för informationsteknologi, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-40523.

Full text
Abstract:
Constantly, antenna plays an important role in expanding the wireless communication systems in different technology applications for example, but not limited to, IoT communications and automotive radar systems. On the other hand, the Bluetooth-Low-Energy (BLE) benefits different sorts of applications, as it offers (i) a very low power consumption, (ii) a very fast data transfer, (iii) and an inexpensive/efficient solution as well. This research is a part of AES-Nordic AB projects, which intends to improve the connection between remote vibration sensors and the measurement device. The vibration sensor sends the captured data to the receiver via a wired connection which, in turn, creates a lot of complications, in terms of access limitation and a connection loss vulnerability. The aim of this thesis is to remove these limitations and improve the overall performance using a wireless connection over BLE. This thesis project presents a novel and an efficient system that eliminates the wired-connections shortcomings by involving a new inverted F-antenna design which transfers data from remote sensors to the measurement device. The produced antenna needs to satisfy the following conditions: (i) resonant frequency of 2.44GHz, (ii) isotropic directivity, (iii) minimum coverage of 20-meters. The other goal of this thesis is to compare the presented antenna with commercially available solutions, such as helical and monopole antennas for the purpose of showing the efficiency of the presented solution. The produced antennas were tested in the anechoic chamber and the measurement results show that the designed inverted F-antenna has a comparatively better performance than its peers.
APA, Harvard, Vancouver, ISO, and other styles
22

Sahd, Curtis Lee. "Bluetooth audio and video streaming on the J2ME platform." Thesis, Rhodes University, 2010. http://hdl.handle.net/10962/d1006521.

Full text
Abstract:
With the increase in bandwidth, more widespread distribution of media, and increased capability of mobile devices, multimedia streaming has not only become feasible, but more economical in terms of space occupied by the media file and the costs involved in attaining it. Although much attention has been paid to peer to peer media streaming over the Internet using HTTP and RTSP, little research has focussed on the use of the Bluetooth protocol for streaming audio and video between mobile devices. This project investigates the feasibility of Bluetooth as a protocol for audio and video streaming between mobile phones using the J2ME platform, through the analysis of Bluetooth protocols, media formats, optimum packet sizes, and the effects of distance on transfer speed. A comparison was made between RFCOMM and L2CAP to determine which protocol could support the fastest transfer speed between two mobile devices. The L2CAP protocol proved to be the most suitable, providing average transfer rates of 136.17 KBps. Using this protocol a second experiment was undertaken to determine the most suitable media format for streaming in terms of: file size, bandwidth usage, quality, and ease of implementation. Out of the eight media formats investigated, the MP3 format provided the smallest file size, smallest bandwidth usage, best quality and highest ease of implementation. Another experiment was conducted to determine the optimum packet size for transfer between devices. A tradeoff was found between packet size and the quality of the sound file, with highest transfer rates being recorded with the MTU size of 668 bytes (136.58 KBps). The class of Bluetooth transmitter typically used in mobile devices (class 2) is considered a weak signal and is adversely affected by distance. As such, the final investigation that was undertaken was aimed at determining the effects of distance on audio streaming and playback. As can be expected, when devices were situated close to each other, the transfer speeds obtained were higher than when devices were far apart. Readings were taken at varying distances (1-15 metres), with erratic transfer speeds observed from 7 metres onwards. This research showed that audio streaming on the J2ME platform is feasible, however using the currently available class of Bluetooth transmitter, video streaming is not feasible. Video files were only playable once the entire media file had been transferred.
APA, Harvard, Vancouver, ISO, and other styles
23

Zhang, Xin. "Network Formation and Routing for Multi-hop Wireless Ad-Hoc Networks." Diss., Georgia Institute of Technology, 2006. http://hdl.handle.net/1853/11470.

Full text
Abstract:
An energy-aware on-demand Bluetooth scatternet formation and routing protocol taking into account network architecture and traffic pattern is proposed. The scatternet formation protocol is able to cope with multiple sources initiating traffic simultaneously as well as prolong network lifetime. A modified Inquiry scheme using extended ID packet is introduced for fast device discovery and power efficient propagation of route request messages with low delay. A mechanism employing POLL packets in Page processes is proposed to transfer scatternet formation and route reply information without extra overhead. In addition, the energy aware forwarding nodes selection scheme is based on local information and results in more uniform network resource utilization and improved network lifetime. Simulation results show that this protocol can provide scatternet formation with reasonable delay and with good load balance which results in prolonged network lifetime for Bluetooth-based wireless sensor networks. In this research, a metric-based scatternet formation algorithm for the Bluetooth-based sensor motes is presented. It optimizes the Bluetooth network formation from the hop distance and link quality perspectives. In addition, a smart repair mechanism is proposed to deal with link/node failure and recover the network connectivity promptly with low overhead. The experiments with the Intel Mote platform demonstrate the effectiveness of the optimizations. This research also investigates the scalability of ad hoc routing protocols in very large-scale wireless ad hoc networks. A comprehensive simulation study is conducted of the performance of an on-demand routing protocol on a very large-scale, with as many as 50,000 nodes in the network. The scalability analysis is addressed based on various network sizes, node density, traffic load, and mobility. The reasons for packet loss are analyzed and categorized at each network layer. Based on the observations, we observe the effect of the parameter selection and try to exhaust the scalability boundary of the on-demand routing protocol for wireless ad hoc networks.
APA, Harvard, Vancouver, ISO, and other styles
24

Mackie, David Sean. "Extending the reach of personal area networks by transporting Bluetooth communications over IP networks." Thesis, Rhodes University, 2007. http://hdl.handle.net/10962/d1006551.

Full text
Abstract:
This thesis presents an investigation of how to extend the reach of a Bluetooth personal area network by introducing the concept of Bluetooth Hotspots. Currently two Bluetooth devices cannot communicate with each other unless they are within radio range, since Bluetooth is designed as a cable-replacement technology for wireless communications over short ranges. An investigation was done into the feasibility of creating Bluetooth hotspots that allow distant Bluetooth devices to communicate with each other by transporting their communications between these hotspots via an alternative network infrastructure such as an IP network. Two approaches were investigated, masquerading of remote devices by the local hotspot to allow seamless communications and proxying services on remote devices by providing them on a local hotspot using a distributed service discovery database. The latter approach was used to develop applications capable of transporting Bluetooth’s RFCOMM and L2CAP protocols. Quantitative tests were performed to establish the throughput performance and latency of these transport applications. Furthermore, a number of selected Bluetooth services were tested which lead us to conclude that most data-based protocols can be transported by the system.
APA, Harvard, Vancouver, ISO, and other styles
25

Ball, Stephen. "Investigating telemonitoring technologies for the detection of activities and the application of BLE in smart homes for elderly independent living." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/123510/1/Stephen%20Ball%20Thesis.pdf.

Full text
Abstract:
Due to the rise in the elderly population and the prevalence of chronic diseases, healthcare organizations around the world are faced with an economic burden which will continue to grow. For this reason there is an urgent demand to reduce the intake of elders in hospitals and nursing homes by allowing them to live independently for greater lengths of time. In response to this demand, researchers are strongly focusing on 'telemonitoring', which is the use of information technology (IT) to monitor the health status of an individual from a remote location (e.g. their home). The first aim of this thesis was to investigate how telemonitoring technologies can detect elderly activities for health assessment purposes. To assess a patient's health status holistically, a wide variety of factors needed be considered by practitioners. Currently many telemonitoring technologies in research have addressed these factors/assessments by monitoring elderly activities. However based on the literature reviews, researchers have not been able to develop a comprehensive understanding of how these technologies support each assessment. Therefore the first contribution in chapter 3 of this thesis addresses this gap. A literature review was conducted where 215 telemonitoring technologies were identified from 82 papers, published between 2000 and 2016. Six assessments which involve monitoring of activities were identified as (1) mobility, (2) nutrition, (3) safety, (4) cognitive, (5) social, and (6) routine. All included technologies were categorized into six tables according to the assessment that they supported. From assessing the contents of these tables, it was found that a significant portion of ITs relate to mobility, nutritional, safety and routine assessments. Many of the studies were found to assess technologies inside of laboratory setting and still require improvement before they are suited for real world application. It also found that many of the technologies were not equipped with wireless communication. In recent years recently have been focusing been integrating wireless sensing technology into telemonitoring applications. Many of these wireless technologies are small, unobtrusive, and usually need to be powered by small batteries (e.g. coin cell) which have limited capacity. For this reason, researchers have had difficulties prolonging battery life to a duration that is practical. However the recent release of Bluetooth Low Energy (BLE) has the potential of resolving this issue due to its power saving qualities. The 2nd aim of this thesis is to assess the performance of Bluetooth Low Energy (BLE) in telemonitoring frameworks using advertising mode. Advertising mode is often used for device discovery purposes, however it can also be used to send context data without the need for device connection establishment. This method has received little investigation from researchers and yet it has the potential of offering advantages such as reduction in power consumption and manufacturing costs. Therefore in this thesis, the performance of BLE advertising mode was used within two telemonitoring applications. Firstly, a new device called 'BLUESOUND' is proposed. The device uses ultrasound sensing technology which can efficiently differentiate multiple residents in a home environment based on their height. The device consists of three sensing/communication modules: A Passive Infrared (PIR) occupancy module, an ultrasound array module and a BLE communication module. The PIR occupancy module is used to detect walking direction, while the ultrasound array measures the resident's height. The combination of these two technologies can also be used to detect a resident's velocity. BLE advertising mode is used to communicate acquired data to a smart phone gateway/database. A new embedded algorithm was able to increase the energy efficiency of the identification technology. Comprehensive modelling and experimentation was undertaken to assess the performance the BLUESOUND device. The BLUESOUND device was able to distinguish between multiple resident identities by measuring height accurately. Currently researchers have developed various wearable ECG monitors as there is a demand to detect the onset of cardiac disease earlier in the elderly population. However most of these devices have only lasted a couple of days on a coin cell battery which is not practical. Therefore the performance of BLE advertising mode was explored using a virtual BLE based ECG model in MATLAB. To further minimize power consumption, an ECG extraction technique (based on the 'So and Chan' algorithm [1]) was used in the model to extract some of the most significant points on the signal. Based on three simulation trails, ECG data was transferred to a scanning device with high accuracy (average of 99.62%). It was estimated that the virtual system is approximately 13 times more energy efficient compared to sending ECG stream data continuously when a connection is established.
APA, Harvard, Vancouver, ISO, and other styles
26

Gäwerth, Andreas. "Embedded Wireless Communication : Connectivity of a smartphone with BluetoothLE and UWB devices." Thesis, Uppsala universitet, Institutionen för informationsteknologi, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-341768.

Full text
Abstract:
The next generation (5G) mobile and wireless communications system is expectedto start its deployment in 2020. The 5G system will include various newlydeveloped technologies and enable new applications, among which, for instance,are device-to-device (D2D) communications, and various techniques for Internetof things (IoT). This thesis project aims to develop techniques for connectingsmartphones with small devices (suited for IoT) and for connecting smartphoneto smartphone (suited for D2D communications), using Bluetooth and IEEE802.15.4 ultra wideband (UWB) wireless communications protocols. The mainfocus of the project is on the UWB-based techniques. The project works involvelearning Bluetooth and UWB communications theories and protocols, andimplementing three use cases: 1) connection of a smartphone with a Bluetoothdevice, 2) connection of a smartphone with a UWB-based wireless network, and3) connection of two smartphones through UWB communications. Case 1 and 2 arewell suited for IoT and Case 3 well fits the D2D communications. A prototypefor the three cases has been developed that consists of smartphones (withAndroid operating system), a Bluetooth node (CC2650 development kit from TexasInstruments) and UWB nodes (EVK1000 development kits from DecaWave Inc.,). AnApp has been created that runs on the smartphones to handle Bluetooth and UWBcommunications for transmitting and receiving data. With programs (algorithmsin C/C++) that run on wireless devices and sensor nodes have been developed tohandle measurements from sensors and communications between small devices andsmartphones. The prototype has been tested and shown to work with therequirements satisfied.
APA, Harvard, Vancouver, ISO, and other styles
27

Chevrollier, Nicolas. "Coexistence and call admission control in a heterogeneous wireless environment." Evry, Institut national des télécommunications, 2006. http://www.theses.fr/2006TELE0011.

Full text
Abstract:
In today’s digital world, various types of users, applications and wireless technologies interact to create a complex and heterogeneous environment. In this thesis, we address two issues introduced by the heterogeneity of the digital world. First, we evaluate the interference generated when multiple wireless technologies operate in close proximity. We develop two coexistence mechanisms to mitigate interference in the 2. 4 GHz frequency band: a scheduling scheme for Bluetooth devices known as bluetooth interference aware scheduling and a scheme based on Layer 2 triggered handovers. Second, we investigate how to integrate vertical handovers into call admission control algorithms in order to limit the communication disruption and quality of service discontinuity. We evaluate the impacts of those handovers in terms of packet loss and disruption latency, and develop two call admission control algorithms, namely the probabilistic call admission control and handover-based call admission control algorithms. The former is based on a probabilistic admission decision and the latter includes a bandwidth reservation policy along with preemptive handovers. Both aim at reducing the occurrence of hard handovers in a heterogeneous wireless environment
Dans le monde digital qui nous entoure, différents types d'utilisateurs, d'applications et de technologies sans fil interagissent pour créer un environnement complexe et hétérogène. Le travail effectué dans cette thèse traite de problématiques introduites par le caractère hétérogène du monde digital. Le premier sujet d'étude s'attache à évaluer les interférences générées dans le bande de fréquence 2. 4 GHz lorsque plusieurs technologies sans fil opèrent en même temps dans un espace limité. Deux solutions sont proposées pour réduire ou éviter ces interférences. La première est un mécanisme d'ordonnancement des paquets au niveau de la couche MAC Bluetooth. La deuxième utilise des passages inter ou intra technologie déclenchés par des indicateurs de niveau 2. Le deuxième sujet d'étude s'attarde sur la mobilité verticale dans un environnement sans fil hétérogène. Les effets de cette mobilité sont évaluées sur le flux applicatif et la discontinuité de qualité de service que ces passages introduisent est analysée. Par la suite, deux algorithmes de contrôle d'admission qui prennent en compte le caractère néfaste de certains passages entre technologies sont proposés. Flexible et robuste, le premier repose sur une décision probabilistique d'admission dans une cellule WLAN. Le second utilise un système de réservation pondéré de bande passante et des passages préemptifs pour diminuer les nombres de passages de type "hard" et améliorer la qualité de service perçue par les utilisateurs
APA, Harvard, Vancouver, ISO, and other styles
28

Gasnárek, Jiří. "Využití bezdrátových technologií k přenosu audio signálu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219853.

Full text
Abstract:
Description of construction of analog-to-digital and digital-to-analog convertors for audio signal and distribution via wireless channel, are the objectives of my master's thesis. There are descriptions of DPS construction, design of panels and measurement of system parameters in the project, above all sampling and reconstruction of audio signal, power consumption and signal range of wireless modules. At the end is discussed real usage and suggestions for further developement.
APA, Harvard, Vancouver, ISO, and other styles
29

Helluy-Lafont, Étienne. "Sécurité et détection d'intrusion dans les réseaux sans fil." Thesis, Lille, 2021. http://www.theses.fr/2021LILUI017.

Full text
Abstract:
Cette thèse porte sur la sécurité des communications sans fil, appliquée aux équipementstels que les téléphones mobiles, les ordinateurs portables, ou les objets communicants relevant de l’internet des objets.Aujourd’hui, les communications sans fil sont réalisées à l’aide de composants intégrés (modem), qui peuvent eux-même être la cible d’attaques. Effectivement, ces modem peuvent contenir des logiciels, au code fermé, qui sont peu audités et peuvent recéler des vulnérabilités. Au cours de cette thèse, nous avons poursuivi deux approches complémentaires qui visent à adresser le problème de la sécurité des modem sans fil. La première consiste à détecter les attaques pour mitiger les risques posés par les vulnérabilité ; la seconde àsavoir identifier et à corriger ces vulnérabilités afin d’éliminer les risques. Les modem sans fil posent des contraintes particulières pour les systèmes de détection d’intrusion (IDS). De fait, si le modem risque d’être compromis, le système d’exploitation (OS) ne peut pas faire confiance aux informations qu’il remonte : le modem n’est pas fiable. Il est ainsi délicat de détecter des attaques sans fil depuis l’OS, car il ne dispose d’aucune source d’information fiable sur laquelle baser cette détection. Dans ce contexte, il est préférable de réaliser la détection d’intrusion au niveau du réseau, en capturant directement les signaux échangés sans fil. Cependant, il n’est pastoujours simple de récupérer les signaux qui nous intéressent. Aujourd’hui, les équipements supportent une multitude de normes de communication différentes. Cette hétérogénéité représente un défi pour les solutions de capture. De plus, certains protocoles se prêtent malà une capture passive de leurs échanges, et sont parfois même spécifiquement conçus pour l’empêcher. Enfin, les données sont généralement chiffrées, ce qui constitue un obstacle supplémentaire pour les IDS. Les radio logicielles peuvent répondre en partie aux défis posés par cette diversité. Elles se composent d’une partie matérielle, mais surtout de logiciel, qui peut être adapté pourrecevoir des signaux de n’importe quel standard - dans les limites du matériel. Dans cette thèse, nous présentons une radio-logicielle spécialement concue pour permettre la capture et l’analyse d’une bande de fréquence donnée, afin d’identifier et d’étiqueter les signaux présents. Il s’agit d’une brique élémentaire pour construire des systèmes de détection d’intrusion sans-fil. Par ailleurs, les radio-logicielles traitent les signaux au niveau de leur représentation physique. Cela leur permet de collecter des informations supplémentaires, qui n’auraient pas été accessibles si on avait utilisé un modem conventionnel pour capturer les signaux. Dans cette thèse, nous décrivons des méthodes permettant d’identifier le modèle d’un appareil Bluetooth en analysant la représentation physique des paquets qu’il transmet.Dans la seconde partie de cette thèse, nous avons analysé les micrologiciels de plusieurs modem Bluetooth, afin d’identifier des vulnérabilités permettant d’en prendre le contrôle à distance. Cela nous a permis de découvrir plusieurs vulnérabilités exploitables dans desmodem très largement utilisés. Dans un second temps, nous avons développé un modem Bluetooth libre et open-source qui permet d’interagir avec de véritables modem pour faciliter la recherche et développement sur leur sécurité
This thesis focuses on the security of wireless communications, as used on devices such as mobile phones, laptops, or connected devices that make up the Internet of Things. Nowadays, wireless communications are carried out using integrated components (modem), which can themselves be the target of attacks. Indeed, these modems contain Closed Source software, that are poorly audited, and may have flaws. During this thesis, we pursued two complementary approaches that aim to address the problem of wireless modems security. The first is to detect attacks in order to mitigate the risks posed by vulnerabilities ; the second is to identify and correct these vulnerabilities in order to eliminate the risks. Wireless modems pose particular constraints for Intrusion Detection Systems (IDS). In fact, if the modem is at risk of being compromised, the operating system (OS) cannot trust the information it is sending back : the modem is unreliable. This makes it difficult to detect wireless attacks from the OS, as it has no reliable source of information on whichto base detection. In this context, it is preferable to perform intrusion detection at the network level, by directly capturing the signals exchanged wirelessly. However, it is not always easy to recover the signals of interest. Today’s equipment supports a multitude of different communication standards. This heterogeneity represents a challenge for capture solutions. In addition, some protocols do not lend themselves well to passive capture of their exchanges, and are sometimes even specifically designed to prevent it. Finally, data is usually encrypted, which is an additional obstacle for intrusion detection systems. Software Defined Radio (SDR) can partly meet the challenges posed by this diversity. They consist of a hardware part, but above all of software, which can be adapted to receive signals of any standard - within the limits of the material. In this thesis, we present a SDR specifically designed to allow the capture and analysis of a given frequency band, in order to identify and label the signals present. It is an elementary building block for building wireless intrusion detection systems. In addition, software radio processes signals in terms of their physical representation. This allows them to collect additional information, which would not have been accessible if a conventional modem had been used to capture the signals. In this thesis, we describe methods to identify the model of a Bluetooth device by analysing the physical representation of the packets it transmits. In the second part of this thesis, we analysed the firmware of several Bluetooth modems, in order to identify vulnerabilities that would allow remote control. This allowed us to discover several exploitable vulnerabilities in widely used modems. Finally, we developeda free and open-source Bluetooth modem that allows interaction with real-world modems to facilitate research and development on their security
APA, Harvard, Vancouver, ISO, and other styles
30

Rammouz, Ramzy. "Optimisation de la gestion d’énergie dans les systèmes embarqués." Thesis, Lyon, 2017. http://www.theses.fr/2017LYSEI122/document.

Full text
Abstract:
Qu’il s’agisse de suivre des patients à domicile, ou de prévenir l’isolement ou la vulnérabilité de personnes âgées, les systèmes de suivi et d'assistance électroniques qui émergent offrent des opportunités sans précédents. L’enjeu est considérable, et on assiste à un développement technologique important qui permet désormais aux particuliers ou aux établissements hospitaliers ou médico-sociaux d’assurer le diagnostic, la prévention, le contrôle, voire le traitement de patients à distance (mesures de paramètres physiologiques, administration de médicaments, détection de chutes, etc.). Ce suivi à distance est en particulier devenu possible et performant avec l’avènement des objets connectés. On peut ainsi envisager d’exploiter un réseau de capteurs embarqué sur un patient pour mesurer à distance et en temps réel la température, le rythme cardiaque ou la tension artérielle d’un patient. Les données sont transmises (et/ou stockées) au praticien pour réaliser le diagnostic et définir les traitements. Pour autant la conception optimale (choix des technologies de transmission, de stockage, etc.) ainsi que la problématique de la gestion d’énergie constituent des verrous à leur adoption. Le travail proposé dans cette thèse consiste donc à développer un outil d’aide à la conception de réseaux de capteurs médicaux communicants embarqués sur la personne. Il s’agit en particulier de fournir une information sur la faisabilité au plus tôt dans le cycle de conception, et garantir l’obtention d’un circuit « correcte par construction ». L’accent est porté sur la maîtrise (voire la réduction) de la consommation d’énergie Dans ce sens, une simulation fiable et précise permet de contrôler, dès le début du flot de conception, la consommation en énergie du réseau. Elle assure par la suite une meilleure gestion de l’énergie disponible et éventuellement une autonomie plus importante. L’outil, centré sur l’optimisation de la consommation d’énergie, est implémenté dans un environnement Matlab. Basé sur une modélisation de la consommation en énergie d’un nœud de capteur, il se veut générique aussi bien que précis. Il assure une implémentation simple de nouveaux composants à partir de fiches techniques. Ces composants sont construits sous la forme de blocs réutilisables permettant ainsi à l’utilisateur de créer sa propre librairie. En plus de l’estimation de la consommation, cet outil met en œuvre des algorithmes d’optimisation pour guider l’utilisateur vers une conception qui respecte les contraintes énergétiques et médicales de l’application (choix de composants, choix de source d’énergie, configuration du réseau, etc.). Une application est proposée d’abord au niveau d’un nœud de capteur de température corporelle communiquant par Bluetooth Low Energy. Ce même nœud est ensuite placé au sein d’un réseau de capteurs pour la surveillance de cinq paramètres physiologiques différents. Une validation expérimentale des résultats de simulation est également réalisée
Whether it is to monitor patients at home, or to prevent the isolation and vulnerability of the elderly, the emerging electronic monitoring and assistance systems offer new opportunities. The technological development we have witnessed allows individuals, hospitals, or medical aid organizations to provide the diagnosis, prevention, control or even treatment of patients outside of conventional clinical settings (measurements of physiological parameters, drug administration, fall detection, etc.).Recent developments in connected objects made efficient remote patient monitoring possible. In other words, we are able to use a network of wearable or implantable sensors to remotely obtain real time measurements of a patient’s vital signs (temperature, heart rate, blood pressure, etc.). Data is transmitted (and / or stored) to medical personnel who are able to perform diagnosis and define treatments accordingly. An optimal design (transmission protocols, data storage, etc.) and energy management are the bottlenecks involved in the implementation of such systems. This work proposes to develop a tool to help in the design of medical sensor networks. It aims to provide information regarding feasibility during the early stages of the design thus ensuring that a "well-constructed" circuit is obtained. The emphasis is on the control (or even reduction) of energy consumption. In this regard, an efficient energy consumption simulation at the beginning of the design flow would enable the user to decide on system parameters. This will ensure an optimal management of the available energy and eventually a longer network lifetime. The proposed tool is centered on the optimization of the energy consumption using Matlab environment. It is built over a model of the energy consumption of wireless sensor nodes. It is intended to be generic and accurate. In fact, it enables fast creation of new component description based on the datasheets. These components are reusable thus producing a growing database. In addition to energy consumption estimation, the tool uses optimization routines to guide the user through an energy aware design (picking energy sources, components, network configuration, etc.) that complies with medical requirements. An application to a single Bluetooth Low Energy body temperature sensor is first proposed. The same sensor is then included in a physiological sensor network. A physical implementation is used in order to compare the results obtained through simulation with practical measurements
APA, Harvard, Vancouver, ISO, and other styles
31

Kolarčík, Tomáš. "Detekce přítomnosti osob pomocí IoT senzorů." Master's thesis, Vysoké učení technické v Brně. Fakulta informačních technologií, 2021. http://www.nusl.cz/ntk/nusl-449175.

Full text
Abstract:
The aim of this work was to create a module for home automation tools Home Assistant. The module is able to determine  which room is inhabited and estimate more accurate position of people inside the room. Known GPS location cannot be used for this purpose because it is inaccurate inside buildings and therefore one of the indoor location techniques needs to be used. Solution based on Bluetooth Low Energy wireless technology was chosen. The localization technique is the fingerprinting method, which is based on estimating the position according to the signal strength at any point in space, which are compared with a database of these points using machine learning. The system can be supplemented with motion sensors that ensure a quick response when entering the room. This system can be deployed within a house, apartment or small to medium-sized company to determine the position of people in the building and can serve as a very powerful element of home automation.
APA, Harvard, Vancouver, ISO, and other styles
32

洪子平. "Home Network:The Wireless Architecture Based on Bluetooth Technology." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/92300567618295234285.

Full text
APA, Harvard, Vancouver, ISO, and other styles
33

Chen, Guan-Ting, and 陳冠廷. "Implementation of Wireless Heart Rate Measuring System via Bluetooth Technology." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/09230995994533239716.

Full text
Abstract:
碩士
元智大學
機械工程學系
95
Electrocardiography (ECG), which is composed of the compartmental waves including the P, Q, R, S, and T wave, is a very important indictor in the heart function diagnosis. According to the survey conducted by the Department of Health, the Executive Yuan of the Republic of China, fifty percent of death population is caused by heart disease. Moreover, most of heart disease patients can not be diagnosed with significant symptoms and the strikes of heart disease can cause death over one third. Therefore, we created a low-cost and high performance heart rate variability measurement. It can not only capture the heart rate signal but also record the data via bluetooth transmission protocol with the microprocessor of PIC produced by Microchip. The user only brings this ECG collection system and the bluetooth receptor connected with a PC can record the data. The distance of our wireless measuring can extend to ten meters. Finally, using the rank order-frequency statistics method, the detected signals were compared with the commercial ECG measurement of MP60 which produced by Philips. The comparison results show that the recorded signals have a little different with MP60. The problem could be that the sampling rate of our ECG collection system is slower than MP60.
APA, Harvard, Vancouver, ISO, and other styles
34

Lin, Yung-Tsang, and 林永倉. "A Networking - Access Entrance Management System Using Bluetooth Wireless Technology." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/n5t5v7.

Full text
Abstract:
碩士
國立虎尾科技大學
電機工程研究所
100
A wireless point-to-point transmission technology, RFID, is mostly adopted in the current entrance management systems. There are many well-known RFID applications developed in Taiwan, such as fare card of metro Taipei, Electronic Toll Collection (i.e. ETC) of freeways, and clock in and out for employees or students. During the rush hour, the waiting time for check-in is obviously increased and then results in a crowd of users in front of the gates since the RFID readers are not enough for the new arrival users. In this paper, we will present a new wireless entrance management system by designing the Bluetooth network that provides a large-scale user capacity with the feature of infrastructure mode. In the proposed system, the large users can simultaneously access the network to make check-in procedure with short time to improve the above mentioned weakness by RFID systems. In order to obtain a large-scale network, a Bluetooth scatternet formed by a number of piconets is considered in our system. As shown in the previous study, the performance efficiency of scatternets is down to die as the size of piconets is up over to ten. Furthermore, the topology formation of piconets is a factor to affect the performance of scatternets. Therefore, our proposed scatternet consists of eight piconets and forms with a hybrid topology of star and ring, called Large-Scale Hybrid Scatternet. It can approach to a high user capacity and also keep an acceptable system performance. Since the Bluetooth is a type of Ad Hoc network, it will translate to connecting state to redo formation procedure when there are users arriving and/or leaving the network. Meanwhile, the network cannot keep in active state to communicate data with each other node. In the applications of entrance systems, the new arrival users always keep coming and leaving after check-in. In order to maintain the proposed scatternet in active state in spite of users arrived and/or leaved the system, we install 8 fixed nodes as master role and 7 fixed nodes as bridge role in the proposed scatternet. It results in the decrease of user capacity, but it let the scatternet holds the feature of infrastructure network. In the other words, the new arrival users are always as slave role when they access the network. In addition, under the proposed scatternet, we propose a routing scheme to ensure the transmission order among the nodes of different piconets, called Large-Scale Hybrid Scatternet Algorithm, i.e. LHSA. In comparison with the previous schemes, LHSA shows that it has a simple rule to select the short paths. At last, we plan a geographic check-in area for arrival users to access network. The planed area must be constrained under the coverage of the Bluetooth network and user capacity. According to first-in, first-service rule, a Regional Boundaries to determine method is proposed to ensure the successful check-in of users in the geographic area. The method utilizes the users’ RSSI values to estimate the distances between network and users and then selects the nearer users to access network. This method guarantees the users obtain a fast check-in procedure and the system also keeps high performance efficiency.
APA, Harvard, Vancouver, ISO, and other styles
35

Reddy, Gonapati Rajashekar. "Congestion control by sleep management in wireless sensor networks using Bluetooth technology." 2006. http://hdl.handle.net/1993/20709.

Full text
APA, Harvard, Vancouver, ISO, and other styles
36

Tuan, Chin-Yun, and 段晉雲. "The Study of Wireless Data Acquisition Channel Using Bluetooth Low Energy Technology." Thesis, 2017. http://ndltd.ncl.edu.tw/handle/6v6es8.

Full text
Abstract:
碩士
國立交通大學
工學院半導體材料與製程設備學程
105
With the evolution of modern factory and the rise of the concept of “ Industry 4.0 ” , both the smart sensor network and remote sensor system would play an important role on the following change. Especially in the semiconductor industry, for the manufacture processes and facilities, the needs to remote sensor the related environmental parameters such as temperature, humidity, pressure, types of gases, electrical voltage, electrical current¸vibration and acid., etcs are essentials for the higher yield rate. Prompt detecte and response once the out-of-limit events happened are the basics to become smart foundry. Based on the above reasons, this thesis aims to fulfil a wireless sensor network platform that using Bluetooth Low Energy (BLE) communication technology with both of the digital and analog signal channels to detect the corresponding signals from the extra varietys of sensors and then to transmit the data via the Bluetooth wireless technology to the computer-end to display the corresponding information on the Human-Machine Interface program.
APA, Harvard, Vancouver, ISO, and other styles
37

蘇志明. "The global marking opportunities of wireless communication products in Taiwan:a case of bluetooth technology." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/70072601020349939865.

Full text
APA, Harvard, Vancouver, ISO, and other styles
38

Syu, Mao-Sin, and 徐茂馨. "Design and Implementation of a Door Control System with Hybrid Wireless Identification Technology Based on Wi-Fi and Bluetooth." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/36263q.

Full text
Abstract:
碩士
國立虎尾科技大學
電機工程研究所
101
This master thesis proposed a device identification method based on the connection property of Wi-Fi and Bluetooth to reduce human operating. The method of device identification integrates with RFID and NFC technology, and implements a door control system with the hybrid wireless identification technology based on Wi-Fi and Bluetooth. This system is divided into three subsystems: Door Controller (DC), Door Control Gateway (DCG) and Door Control Center (DCC). DC is separated to two types according to the ability of the controller: High-End Door Controller (H-EDC) and Low-End Door Controller (L-EDC). Such controllers can identify user device with wireless technologies and control door lockers. In the proposed system, each area has a DCG, and each DCG connects to DC. Thus, DCG also is a bridge between DCC and DC. DCs will send identification records to DCG. The identification record can be shown and stored on the DCG. The DCC is to manage multiple DCGs. Moreover, DCC provides the functions of system management and door-access log for administrators and users. Additionally, the system performance was measured, and the identification time of H-E/L-EDC is less than 31ms. Therefore, according to the result of system performance, the human operating can be reduced when using the door control system with hybrid wireless identification technologies.
APA, Harvard, Vancouver, ISO, and other styles
39

Mackie, David Sean. "Extending the reach of personal area networks by transporting Bluetooth communications over IP networks /." 2006. http://eprints.ru.ac.za/861/.

Full text
APA, Harvard, Vancouver, ISO, and other styles
40

Liu, Yi-Sheng. "A token based MAC protocol for wireless ad hoc networks." Thesis, 2003. http://hdl.handle.net/10413/4172.

Full text
Abstract:
The emergence of portable terminals in work and living environments is accelerating the progression of wireless networks. A wireless ad hoc network is a new network concept where users establish peer-to-peer communication among themselves independently, in their small area. Since the wireless medium is a shared resource, it becomes an important design issue to efficiently allocate bandwidth among users. MAC (Medium Access Control) layer arbitrates the channel access to the wireless medium and is also responsible for bandwidth allocation to different users, therefore a large amount of research has been conducted on various MAC protocols for ad hoc wireless networks. This dissertation begins with a survey of existing wireless MAC protocols. The survey includes protocols designed for different network generations and topologies, classifying them based on architecture and mode of operation. Next, we concentrate on the MAC protocols proposed for distributed wireless networks. We propose a new MAC protocol based on a token-passing strategy; which not only incorporates the advantages of the guaranteed access scheme into the distributed type of wireless networks, but also the data rate and delay level QoS guarantees. Data rate QoS provides fairness into sharing of the channel, while delay level QoS introduces a flexible prioritized access to channels by adjusting transmission permission to the current network traffic activities. A simulation model for the protocol is developed and delay and throughput performance results are presented. To examine the efficiency and performance of the proposed MAC scheme in an ad hoc wireless environment, it is incorporated into the Bluetooth structured network. The model is then simulated in the Bluetooth environment and performance results are presented. Furthermore, an analytical model is proposed and an approximate delay analysis conducted for the proposed MAC scheme. Analytical results are derived and compared with results obtained from computer simulations. The dissertation concludes with suggestions for improvements and future work.
Thesis (M.Sc.-Engineering)-University of Natal, 2003.
APA, Harvard, Vancouver, ISO, and other styles
41

Phadke, Aboli Manas. "Designing and experimenting with e-DTS 3.0." Thesis, 2014. http://hdl.handle.net/1805/4932.

Full text
Abstract:
Indiana University-Purdue University Indianapolis (IUPUI)
With the advances in embedded technology and the omnipresence of smartphones, tracking systems do not need to be confined to a specific tracking environment. By introducing mobile devices into a tracking system, we can leverage their mobility and the availability of multiple sensors such as camera, Wi-Fi, Bluetooth and Inertial sensors. This thesis proposes to improve the existing tracking systems, enhanced Distributed Tracking System (e-DTS 2.0) [19] and enhanced Distributed Object Tracking System (eDOTS)[26], in the form of e-DTS 3.0 and provides an empirical analysis of these improvements. The enhancements proposed are to introduce Android-based mobile devices into the tracking system, to use multiple sensors on the mobile devices such as the camera, the Wi-Fi and Bluetooth sensors and inertial sensors and to utilize possible resources that may be available in the environment to make the tracking opportunistic. This thesis empirically validates the proposed enhancements through the experiments carried out on a prototype of e-DTS 3.0.
APA, Harvard, Vancouver, ISO, and other styles
We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!

To the bibliography