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Dissertations / Theses on the topic 'Medium access controls (MAC) protocols'

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Published: 4 June 2021

Last updated: 12 February 2022

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1

Guennoun, Mouhcine. "Semi-Persistent Medium Access Control Protocols for Wireless Sensor Networks." Thesis, Université d'Ottawa / University of Ottawa, 2014. http://hdl.handle.net/10393/31769.

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Wireless Sensor Networks (WSNs) are dense clusters of sensor nodes, made up of small, intelligent, resource-constrained wireless devices that are deployed to monitor a specific phenomenon in a certain field. The sensor nodes can be constrained by limited power supply, memory capacity and/or processing capabilities, which means that the design of WSNs requires all algorithms and protocols to be lightweight and efficient, and use as little power as possible. The Medium Access Control (MAC) protocol in WSNs, defined by the IEEE 802.15.4 standard, employs the Carrier Sense Multiple Access with Col

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2

Cavallero, Sara. "Medium Access Control Protocols for Terahertz Communication." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2021.

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This thesis proposes and studies a Medium Access Control (MAC) protocol for networks of tags deployed over an industrial machine using THz communications. Despite the great advantages of these frequencies, there are drawbacks that cannot be ignored, such as propagation delays that, even at small distances, are of the same order of magnitude as packet transmission times. For this reason, the mathematical models developed for Contention-Free and Contention-Based protocols take into account the propagation delay. The main focus of this thesis is on the CSMA/CA protocol, which introduces channel

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Kalfas, Georgios. "Medium-transparent MAC protocols for converged optical wireless networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2017. http://hdl.handle.net/10803/406358.

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In order to address the explosive demand for high-capacity and omnipresent wireless access, modern cell-based wireless networks are slowly adopting two major solution roadmaps. The first is the employment of small-cell formations in order to increase the overall spectral efficiency, whereas the second is the employment of higher frequency bands, such as the mm-wave 60GHz band, that offers vast amounts of bandwidth. Depending on the specific application, the above solutions inevitably require the installation and operational management of large amounts of Base Stations (BSs) or Access Points (A

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4

Augustin, Angelika. "Effective Power Consumption in MAC Protocols for Wireless Sensor Networks." Thesis, Halmstad University, School of Information Science, Computer and Electrical Engineering (IDE), 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-286.

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<p>Wireless sensor networks offer easy implementation, flexibility and mobility of hand held </p><p>devices. Sensors consist of an internal power source, which is the great limitation for </p><p>the life time and the usage of sensor networks. To increase the life time, sensors should </p><p>stay in energy saving sleep mode as long as possible, because in sleep mode the radio is </p><p>either shut down or working with less energy. Better energy handling is implemented in </p><p>different power saving mechanism of common Medium Access Control protocols, which are </p><p>evaluated and analyzed an

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Bag, Anirban. "MEDIUM ACCESS CONTROL PROTOCOLS AND ROUTING ALGORITHMS FOR WIRELESS SENSOR NETWORKS." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3418.

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In recent years, the development of a large variety of mobile computing devices has led to wide scale deployment and use of wireless ad hoc and sensor networks. Wireless Sensor Networks consist of battery powered, tiny and cheap "motes", having sensing and wireless communication capabilities. Although wireless motes have limited battery power, communication and computation capabilities, the range of their application is vast. In the first part of the dissertation, we have addressed the specific application of Biomedical Sensor Networks. To solve the problem of data routing in these networks, w

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Armstrong, Dean Andrew. "Easing the Transition from Inspiration to Implementation: A Rapid Prototyping Platform for Wireless Medium Access Control Protocols." The University of Waikato, 2007. http://hdl.handle.net/10289/2528.

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Packet broadcast networks are in widespread use in modern wireless communication systems. Medium access control is a key functionality within such technologies. A substantial research effort has been and continues to be invested into the study of existing protocols and the development of new and specialised ones. Academic researchers are restricted in their studies by an absence of suitable wireless MAC protocol development methods. This thesis describes an environment which allows rapid prototyping and evaluation of wireless medium access control protocols. The proposed design flow allows

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7

van, Coppenhagen Robert Lindenberg, and robert vancoppenhagen@dsto defence gov au. "On the Coordinated Use of a Sleep Mode in Wireless Sensor Networks: Ripple Rendezvous." RMIT University. Electrical and Computer Engineering, 2006. http://adt.lib.rmit.edu.au/adt/public/adt-VIT20070122.145741.

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It is widely accepted that low energy consumption is the most important requirement when designing components and systems for a wireless sensor network (WSN). The greatest energy consumer of each node within a WSN is the radio transceiver and as such, it is important that this component be used in an extremely energy e±cient manner. One method of reducing the amount of energy consumed by the radio transceiver is to turn it off and allow nodes to enter a sleep mode. The algorithms that directly control the radio transceiver are traditionally grouped into the Medium Access Control

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8

JAIN, NITIN. "MULTICHANNEL CSMA PROTOCOLS FOR AD HOC NETWORKS." University of Cincinnati / OhioLINK, 2001. http://rave.ohiolink.edu/etdc/view?acc_num=ucin995471534.

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9

Alonso, Zárate Jesús. "Design and analysis of medium access control protocols for ad hoc and cooperative wireless networks." Doctoral thesis, Universitat Politècnica de Catalunya, 2009. http://hdl.handle.net/10803/30707.

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La presente tesis doctoral contribuye a la incesante evolución de las comunicaciones inalámbricas. Se centra en el diseño de protocolos de acceso al medio (MAC) para redes ad hoc y redes inalámbricas cooperativas. En una primera parte introductoria se presenta un minucioso estado del arte y se establecen las bases teóricas de las contribuciones presentadas en la tesis. En esta primera parte introductoria se definen las principales motivaciones de la tesis y se plantean los objetivos. Después, las contribuciones de la tesis se organizan en dos grandes bloques, o partes. En la primera parte de

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10

Kangude, Shantanu. "CSMA with Implicit Scheduling through State-keeping: A Distributed MAC Framework for QoS in Broadcast LANs." Diss., Available online, Georgia Institute of Technology, 2004:, 2004. http://etd.gatech.edu/theses/available/etd-05132004-132109/unrestricted/kangude%5Fshantanu%5F200407%5Fphd.pdf.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2005. Directed by John Copeland.<br>Copeland, John, Committee Chair ; Owen, Henry, Committee Member ; Sivakumar, Raghupathy, Committee Member ; Lanterman, Aaron, Committee Member ; Dos Santos, Andre, Committee Member. Includes bibliographical references.

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11

Ammar, Ibrahim A. M. "Design and analysis of energy-efficient media access control protocols in wireless sensor networks. Design and analysis of MAC layer protocols using low duty cycle technique to improve energy efficient and enhance communication performance in wireless sensor networks." Thesis, University of Bradford, 2014. http://hdl.handle.net/10454/7268.

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Wireless sensor network (WSN) technology has gained significant importance due to its potential support for a wide range of applications. Most of the WSN applications consist of a large numbers of distributed nodes that work together to achieve common objects. Running a large number of nodes requires an efficient mechanism to bring them all together in order to form a multi-hop wireless network that can accomplish some specific tasks. Even with recent developments made in WSN technology, numbers of important challenges still stand as vulnerabilities for WSNs, including energy waste sources, sy

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Ammar, Ibrahim Ammer Musbah. "Design and analysis of energy-efficient media access control protocols in wireless sensor networks : design and analysis of MAC layer protocols using low duty cycle technique to improve energy efficient and enhance communication performance in wireless sensor networks." Thesis, University of Bradford, 2014. http://hdl.handle.net/10454/7268.

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Wireless sensor network (WSN) technology has gained significant importance due to its potential support for a wide range of applications. Most of the WSN applications consist of a large numbers of distributed nodes that work together to achieve common objects. Running a large number of nodes requires an efficient mechanism to bring them all together in order to form a multi-hop wireless network that can accomplish some specific tasks. Even with recent developments made in WSN technology, numbers of important challenges still stand as vulnerabilities for WSNs, including energy waste sources, sy

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13

Hu, Jia. "Analysis and improvement of medium access control protocols in wireless networks : performance modelling and Quality-of-Service enhancement of IEEE 802.11e MAC in wireless local area networks under heterogeneous multimedia traffic." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4466.

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In order to efficiently utilize the scarce wireless resource as well as keep up with the ever-increasing demand for Quality-of-Service (QoS) of multimedia applications, wireless networks are undergoing rapid development and dramatic changes in the underlying technologies and protocols. The Medium Access Control (MAC) protocol, which coordinates the channel access and data transmission of wireless stations, plays a pivotal role in wireless networks. Performance modelling and analysis has been and continues to be of great theoretical and practical importance in the design and development of wire

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14

Gautam, S. Vijay. "Performance Analysis Of A Variation Of The Distributed Queueing Access Protocol." Thesis, Indian Institute of Science, 1995. http://hdl.handle.net/2005/149.

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"A distributed queueing Medium Access Control (MAC) protocol is used in Distributed Queue Dual Bus (DQDB) networks. A modified version of the MAC protocol was proposed by R.R. Pillai and U. Mukherji in an attempt to overcome some of the shortcomings of the DQDB MAC protocol. They analyzed the performance of the system for Bernoulli arrivals and for large propagation delays between the nodes. We extend the performance analysis of the modified MAC protocol for a DQDB type of Network. The parameter of interest to us is the bus access delay. This has two components, viz., the request bus access de

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15

Kunert, Kristina. "Architectures and Protocols for Performance Improvements of Real-Time Networks." Doctoral thesis, Högskolan i Halmstad, Inbyggda system (CERES), 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:hh:diva-14082.

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When designing architectures and protocols for data traffic requiring real-time services, one of the major design goals is to guarantee that traffic deadlines can be met. However, many real-time applications also have additional requirements such as high throughput, high reliability, or energy efficiency. High-performance embedded systems communicating heterogeneous traffic with high bandwidth and strict timing requirements are in need of more efficient communication solutions, while wireless industrial applications, communicating control data, require support of reliability and guarantees of

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16

Qayoom, Mohamad. "An Energy-Efficient Medium Access Control Protocol for Wireless Sensor Networks "V-MAC"." ScholarWorks@UNO, 2008. http://scholarworks.uno.edu/td/704.

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Wireless sensor networks (WSNs) are composed of hundreds of wireless sensors which collaborate to perform a common task. Because of the small size of wireless sensors, they have some serious limitations including very low computation capability and battery reserve. Such resource limitations require that WSN protocols to be extremely efficient. In this thesis, we focus on the Medium Access Control (MAC) layer in WSNs. We propose a MAC scheme, V-MAC, for WSNs that extends that lifetime of the network. We compare V-MAC with other MAC schemes. V-MAC uses a special mechanism to divide sensors in d

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17

Brownfield, Michael I. "Energy-efficient Wireless Sensor Network MAC Protocol." Diss., This resource online, 2006. http://scholar.lib.vt.edu/theses/available/etd-04102006-170423/.

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18

Muqattash, Alaa Hilal. "Medium Access Control and Adaptive Transmission Techniques in Wireless Networks." Diss., Tucson, Arizona : University of Arizona, 2005. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu%5Fetd%5F1359%5F1%5Fm.pdf&type=application/pdf.

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19

Tonsing, Christoph Erik. "Energy-efficient MAC protocol for wireless sensor networks." Diss., University of Pretoria, 2008. http://hdl.handle.net/2263/31247.

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A Wireless Sensor Network (WSN) is a collection of tiny devices called sensor nodes which are deployed in an area to be monitored. Each node has one or more sensors with which they can measure the characteristics of their surroundings. In a typical WSN, the data gathered by each node is sent wirelessly through the network from one node to the next towards a central base station. Each node typically has a very limited energy supply. Therefore, in order for WSNs to have acceptable lifetimes, energy efficiency is a design goal that is of utmost importance and must be kept in mind at all levels of

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20

Mullins, Barry E. "Cater: An Opportunistic Medium Access Control Protocol for Wireless Local Area Networks." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/30578.

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An adaptive MAC protocol is developed and analyzed that offers a "best case" scenario by allowing the MAC to control medium parameters thereby fully exploiting the channel of an ad hoc wireless LAN. This new, opportunistic medium access control protocol is called CATER (Code Adapts To Enhance Reliability) and is based on the proposed MAC standard for wireless local area networks (WLAN)-IEEE 802.11 [IEE96]. As currently proposed, IEEE 802.11 uses a fixed pseudo-noise (PN) code for spreading the information signal, implying a fixed process gain at the receiver. When the channel degrades, IEEE

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Ben, Khalifa Abderrahman. "Medium access control layer for dedicated IoT networks." Thesis, Lyon, 2020. http://www.theses.fr/2020LYSEI063.

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Les réseaux dédiés pour l’Internet des Objets sont apparus avec la promesse de connecter des milliers de nœuds, voire plus, à une seule station de base dans une topologie en étoile. Cette nouvelle logique représente un changement fondamental dans la façon de penser les réseaux, après des décennies pendant lesquelles les travaux de recherche se sont focalisés sur les réseaux multi-sauts. Les réseaux pour l’Internet des Objets se caractérisent par la longue portée des transmissions, la vaste couverture géographique, une faible consommation d’énergie et un bas coût de mise en place. Cela a rendu

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Hyon, Tae-In. "Wireless ATM Networks Medium Access Control with Adaptive Parallel Multiple Substream CDMA Air-inteface." Diss., Virginia Tech, 2001. http://hdl.handle.net/10919/28163.

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One of the most important components of any wireless network is the medium access control protocol. This research deals with wireless ATM (WATM) medium access control (MAC) protocol. Conventional studies concerning WATM have focused mainly on variations of the time-division-multiple-access (TDMA) method for the wireless aspect of WATM networks. However, there are many advantages that the direct-sequence code-division-multiple-access (DS-CDMA) air-interface method has, such as inherent robustness against multipath fading, better resilience against security infringement attempts, and greater

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23

Ahmed, Sabbir. "Performance of Multi-Channel Medium Access Control Protocol incorporating Opportunistic Cooperative Diversity over Rayleigh Fading Channel." Thesis, Blekinge Tekniska Högskola, Avdelningen för signalbehandling, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-6171.

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This thesis paper proposes a Medium Access Control (MAC) protocol for wireless networks, termed as CD-MMAC that utilizes multiple channels and incorporates opportunistic cooperative diversity dynamically to improve its performance. The IEEE 802.11b standard protocol allows the use of multiple channels available at the physical layer but its MAC protocol is designed only for a single channel. The proposed protocol utilizes multiple channels by using single interface and incorporates opportunistic cooperative diversity by using cross-layer MAC. The new protocol leverages the multi-rate capabilit

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Amadou, Ibrahim. "Protocoles de routage sans connaissance de voisinage pour réseaux radio multi-sauts." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00763865.

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L'efficacité énergétique constitue l'objectif clef pour la conception des protocoles de communication pour des réseaux de capteurs radio multi-sauts. Beaucoup d'efforts ont été réalisés à différents niveaux de la pile protocolaire à travers des algorithmes d'agrégation spatiale et temporelle des données, des protocoles de routage efficaces en énergie, et des couches d'accès au médium avec des mécanismes d'ordonnancement permettant de mettre la radio en état d'endormissement afin d'économiser l'énergie. Pour autant, ces protocoles utilisent de façon importante des paquets de contrôle et de déco

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Karaputugala, Gamacharige Madushan Thilina. "On spectrum sensing, resource allocation, and medium access control in cognitive radio networks." Elsevier, 2012. http://hdl.handle.net/1993/30650.

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The cognitive radio-based wireless networks have been proposed as a promising technology to improve the utilization of the radio spectrum through opportunistic spectrum access. In this context, the cognitive radios opportunistically access the spectrum which is licensed to primary users when the primary user transmission is detected to be absent. For opportunistic spectrum access, the cognitive radios should sense the radio environment and allocate the spectrum and power based on the sensing results. To this end, in this thesis, I develop a novel cooperative spectrum sensing scheme for c

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Chandramohan, Vijay. "Design and Performance Evaluation of a New Spatial Reuse FireWire Protocol." [Tampa, Fla.] : University of South Florida, 2003. http://purl.fcla.edu/fcla/etd/SFE0000128.

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Mouradian, Alexandre. "Proposition et vérification formelle de protocoles de communications temps-réel pour les réseaux de capteurs sans fil." Phd thesis, INSA de Lyon, 2013. http://tel.archives-ouvertes.fr/tel-00910394.

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Les RCsF sont des réseaux ad hoc, sans fil, large échelle déployés pour mesurer des paramètres de l'environnement et remonter les informations à un ou plusieurs emplacements (nommés puits). Les éléments qui composent le réseau sont de petits équipements électroniques qui ont de faibles capacités en termes de mémoire et de calcul ; et fonctionnent sur batterie. Ces caractéristiques font que les protocoles développés, dans la littérature scientifique de ces dernières années, visent principalement à auto-organiser le réseau et à réduire la consommation d'énergie. Avec l'apparition d'applications

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Scarlato, Michele. "Sicurezza di rete, analisi del traffico e monitoraggio." Master's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/3223/.

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Il lavoro è stato suddiviso in tre macro-aree. Una prima riguardante un'analisi teorica di come funzionano le intrusioni, di quali software vengono utilizzati per compierle, e di come proteggersi (usando i dispositivi che in termine generico si possono riconoscere come i firewall). Una seconda macro-area che analizza un'intrusione avvenuta dall'esterno verso dei server sensibili di una rete LAN. Questa analisi viene condotta sui file catturati dalle due interfacce di rete configurate in modalità promiscua su una sonda presente nella LAN. Le interfacce sono due per potersi interfacciar

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Sivanantha, Akhil. "EM-MAC : an energy-aware multi-channel medium access control protocol for multi-hop wireless networks." Thesis, 2012. http://hdl.handle.net/1957/28857.

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The stupendous growth in wireless and mobile devices in the recent years has prompted researchers to look at innovative approaches that enable effective use of the available resources. In this thesis, we propose a medium access control (MAC) protocol, referred to as EM-MAC, that enables wireless devices with multi-channel access capabilities while minimizing energy consumption. EM-MAC relies on iMAC's efficient channel selection mechanism to resolve the medium contention on the common control channel, and to select the best available data channel for data communication. Our protocol saves ener

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Liu, Kuang-Hao. "Design, Modeling, and Analysis for MAC Protocols in Ultra-wideband Networks." Thesis, 2008. http://hdl.handle.net/10012/3639.

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Ultra-wideband (UWB) is an appealing transmission technology for short-range, bandwidth demanded wireless communications. With the data rate of several hundred megabits per second, UWB demonstrates great potential in supporting multimedia streams such as high-definition television (HDTV), voice over Internet Protocol (VoIP), and console gaming in office or home networks, known as the wireless personal area network (WPAN). While vast research effort has been made on the physical layer issues of UWB, the corresponding medium access control (MAC) protocols that exploit UWB technology have not bee

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Maiya, Megha. "iMAC : improved medium access control for multi-channel multi-hop wireless networks." Thesis, 2010. http://hdl.handle.net/1957/18086.

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Trends in wireless networks are increasingly pointing towards a future with multi-hop networks deployed in multi-channel environments. In this thesis, we present the design for iMAC—a protocol targeted at medium access control in such environments. iMAC uses control packets on a common control channel to faciliate a three-way handshake between the sender and receiver for every packet transmission. This handshake enables the sender and receiver to come to consensus on a channel to use for data transmission and also signals to neighboring nodes about the contention on that channel. iMAC then use

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Wu, Qian. "Performance Study on a Dual Prohibition Multiple Access Protocol in Mobile Ad Hoc and Wireless Mesh Networks." Thesis, 2007. http://hdl.handle.net/1974/849.

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Thesis (Master, Electrical & Computer Engineering) -- Queen's University, 2007-09-27 21:48:20.594<br>Wireless networks are less reliable than wired networks because channels are “exposed” to the surrounding environment that is susceptible to interference and noise. To minimize losses of data due to collisions, wireless networks need a mechanism to regulate the access on the transmission medium. Medium Access Control (MAC) protocols control access to the shared communication medium so that it can be used efficiently. In this thesis, we first describe the collision-controlled Dual Prohibition M

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Vivek, Kumar *. "Use Of Directional Antennas For Energy-Efficient Design Of Coordinator And Cluster Protocols In Ad hoc Wireless Networks." Thesis, 2004. http://etd.iisc.ernet.in/handle/2005/1309.

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Rambim, Dorothy Apondi. "Transmission control protocol (TCP) and medium access control (MAC) cross-layer enchancement in wireless." Thesis, 2011. http://encore.tut.ac.za/iii/cpro/DigitalItemViewPage.external?sp=1000384.

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M. Tech. Electrical Engineering.<br>Widespread deployment of wireless local area networks (WLANs) and a gradual increase in streaming applications have brought about a demand for improved Quality of Service (QoS) in wireless networks. The IEEE 802.11e standard was proposed to provide QoS mechanisms for assigning high priority to delay-sensitive applications. However, Internet traffic is still dominated by TCP based applications, and the negative effects of the IEEE 802.11e service differentiation scheme on TCP performance in the presence of high priority traffic are becoming a challenging issu

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Huang, Lui-Zhong, and 黃劉中. "A Simulation Study on a Medium Access Control (MAC) Protocol for Personal Communications." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/89217253085279888047.

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碩士<br>國立交通大學<br>電信研究所<br>82<br>In this report, a Medium Access Control (MAC) protocol for a personal communication system is presented and simulated. This protocol is a hybrid of random access and controlled protocol and can accommodate both voice and data information. In order to study the performance of this protocol, we proposed a list- directed discrete event simulation method and two-way traffic models for both voice and data traffic to simulate this MAC protocol. We evaluated system p

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HU, JEN-HUA, and 胡仁華. "A probing-based Bluetooth medium access control (MAC) protocol in the ISM band wireless network." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/73690578437288213008.

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碩士<br>國立臺灣大學<br>資訊工程學研究所<br>90<br>As time goes on, distributed computing evolved into mobile computing in 90s, and then pervasive computing substitutes mobile computing recently [18]. Specifically, existing wired technologies are going to be enhanced or complimented by novel wireless technologies, e.g., mobile phone, and wireless LAN in replace of traditional phone and wired LAN. Light and thin computing devices (e.g., notebook, PDA) supersedes heavy and thick devices for portability. Pervasive computing environment could be characterized as one saturated with computing and communication capab

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"Robust and Efficient Medium Access Despite Jamming." Doctoral diss., 2012. http://hdl.handle.net/2286/R.I.15087.

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abstract: Interference constitutes a major challenge for communication networks operating over a shared medium where availability is imperative. This dissertation studies the problem of designing and analyzing efficient medium access protocols which are robust against strong adversarial jamming. More specifically, four medium access (MAC) protocols (i.e., JADE, ANTIJAM, COMAC, and SINRMAC) which aim to achieve high throughput despite jamming activities under a variety of network and adversary models are presented. We also propose a self-stabilizing leader election protocol, SELECT, that can ef

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Gao, J. L., J. Hu, Geyong Min, and L. Xu. "Analysis of the MAC protocol in low rate wireless personal area networks with bursty ON-OFF traffic." 2013. http://hdl.handle.net/10454/9655.

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No<br>Supported by the IEEE 802.15.4 standard, embedded sensor networks have become popular and been widely deployed in recent years. The IEEE 802.15.4 medium access control (MAC) protocol is uniquely designed to meet the desirable requirements of the low end-to-end delay, low packet loss, and low power consumption in the low rate wireless personal areas networks (LR-WPANs). This paper develops an analytical model to quantify the key performance metrics of the MAC protocol in LR-WPANs with bursty ONOFF traffic. This study fills the gap in the literature by removing the assumptions of saturated

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Gama, Oscar. "A MAC protocol for quality of service provisioning in adaptive biomedical wireless sensor networks." Doctoral thesis, 2011. http://hdl.handle.net/1822/19742.

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Doctorate program on Electronics and Computer Engineering<br>New healthcare solutions are being explored to improve the quality of care and the quality of life of patients, as well as the sustainability and efficiency of the healthcare services. In this context, wireless sensor networks (WSNs) constitute a key technology for closing the loop between patients and healthcare providers, as WSNs provide sensing ability, as well as mobility and portability, essential characteristics for wide acceptance of wireless healthcare technology. Despite the recent advances in the field, the wide adopt

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Mishra, Rajan. "Performance Analysis Of MAC Layer Of High Rate Wireless Personal Area Network (HR WPAN)." Thesis, 2005. http://etd.iisc.ernet.in/handle/2005/1407.

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Afzal, Humaira, Irfan U. Awan, Muhammad R. Mufti, and Ray E. Sheriff. "Modeling of initial contention window size for successful initial ranging process in IEEE 802.22 WRAN cell." 2014. http://hdl.handle.net/10454/9110.

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No<br>Avoiding collision among contending customer premise equipments (CPEs) attempting to associate with a base station (BS) in a wireless regional area network (WRAN) is a challenging issue. The collision probability is highly dependent upon the size of the initial contention window and the number of contending CPEs. To reduce the collision probability among CPEs in order to start the ranging process in an IEEE 802.22 network, the BS needs to adjust the initial contention window size. This paper provides an analytical framework to estimate the ranging request collision probability depending

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