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Journal articles on the topic 'Radio telemetry. Wireless communication systems'

Author: Grafiati

Published: 4 June 2021

Last updated: 19 February 2022

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1

Krasnov, Andrey, Gennadiy Kolovertnov, Marina Prakhova, and Elena Khoroshavina. "Improving data transfer efficiency in a gas field wireless telemetry system." Arctic Environmental Research 18, no. 1 (2018): 14–20. http://dx.doi.org/10.17238/issn2541-8416.2018.18.1.14.

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Effective organisation of communication channels in autonomous information and measurement systems (AIMS) is a burning issue. It is particularly challenging for areas where, for a number of reasons (primarily unprofitability or immaturity of the wired infrastructure), telecommunications can rely only on wireless technologies, i.e., radio channels. Arctic regions of the Russian Federation, where most of Russia’s gas and gas condensate deposits are located, constitute a typical example of such areas. The key challenges during construction of wireless communication channels are associated with th

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Partha, C. G. I., I. N. Budiastra, A. A. N. Amrita, and I. M. Suartika. "Remote Sensing Systems At The Rocket's Payload Test." Journal of Electrical, Electronics and Informatics 2, no. 2 (2018): 44. http://dx.doi.org/10.24843/jeei.2018.v02.i02.p05.

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Aviation technology and space is one of the leading technology for developed countries, especially in the form of rocket technology and payload. Countries that are capable of mastering these technologies will be respected by countries all over the world. Indonesia as the island nation and the State's large and extensive maritime already should have independence in the mastery of the technology of the rocket and payload. Therefore, continuous efforts are required to achieve independence, including through enhancing aviation technology and space technology, particularly at early stages the rocke

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Mansor, Hasmah, Muhamad Haziq Norhisam, Zulkifli Zainal Abidin, and Teddy Surya Gunawan. "Autonomous surface vessel for search and rescue operation." Bulletin of Electrical Engineering and Informatics 10, no. 3 (2021): 1701–8. http://dx.doi.org/10.11591/eei.v10i3.2599.

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Search and rescue operation is performed to save human life, for example during natural disasters, unfortunate incidents on the land, in the deepwater, or lakes. There were incidents happened to the search and rescue crew during the operation although they were well trained. A new method using robotic technology is important to reduce the crew's risk during operations. This research proposed a development of an autonomous surface vessel for search and rescue operations for deepwater applications. The proposed autonomous surface vessel is equipped with a global positioning system (GPS) and unde

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Sanchez-Iborra, Ramon, Ignacio G. Liaño, Christian Simoes, Elena Couñago, and Antonio Skarmeta. "Tracking and Monitoring System Based on LoRa Technology for Lightweight Boats." Electronics 8, no. 1 (2018): 15. http://dx.doi.org/10.3390/electronics8010015.

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Maritime communications are really challenging due to the adverse transmission conditions and the lack of a pre-provided infrastructure for supporting long range connectivity with land. Communications in high seas are usually covered by satellite links that are expensive and lead to high power consumption by the terminals. However, in areas closer to the shore, other communication options have been adopted for different kinds of services such as boat tracking and telemetry, data collection from moored monitoring systems, etc. In these scenarios, technologies such as cellular communications or

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Pies, Martin, Radovan Hajovsky, Martin Latocha, and Stepan Ozana. "Radio Telemetry Unit for Online Monitoring System at Mining Dumps." Applied Mechanics and Materials 548-549 (April 2014): 736–43. http://dx.doi.org/10.4028/www.scientific.net/amm.548-549.736.

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The paper deals with the description of complex monitoring system for remote monitoring of thermal processes, concentration of toxic gases and dustiness of the atmosphere. Each of these quantities is measured and consequently processed by use of wireless modules communicating with supervisor system. It presents design of communication among particular sensors and further data processing and transfer to the dispatching center.

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Rappaport, T. S., and S. Sandhu. "Radio-wave propagation for emerging wireless personal-communication systems." IEEE Antennas and Propagation Magazine 36, no. 5 (1994): 14–24. http://dx.doi.org/10.1109/74.334917.

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Kyberd, P. J., S. Te Winkel, and A. Poulton. "A wireless telemetry system for training users of upper limb prostheses." Prosthetics and Orthotics International 26, no. 1 (2002): 78–81. http://dx.doi.org/10.1080/03093640208726626.

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Telemetry from prosthetic systems is useful in aiding the users and clinical team in setting up and training and monitoring in the use of a prosthesis. The different forms are discussed and a new radio frequency based telemetry system is described. This system uses a computer to display the data and a video mixer to place the information on the same screen as the image of the user so that their actions and control signals can be simultaneously recorded for later study.

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Si, Peiyuan, Weidang Lu, Kecai Gu, et al. "Anti-Wiretap Spectrum-Sharing for Cooperative Cognitive Radio Communication Systems." Sensors 19, no. 19 (2019): 4142. http://dx.doi.org/10.3390/s19194142.

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As wireless communication technology keeps progressing, people’s requirements for wireless communication quality are getting higher and higher. Wireless communication brings convenience, but also causes some problems. On the one hand, the traditional static and fixed spectrum allocation strategy leads to high wastefulness of spectrum resources. The direction of improving the utility of spectrum resources by combining the advantages of cooperative communication and cognitive radio has attracted the attention of many scholars. On the other hand, security of communication is becoming an important

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Ajung Kim, Young Hun Joo, and Yungsoo Kim. "60GHz wireless communication systems with radio-over-fiber links for indoor wireless LANs." IEEE Transactions on Consumer Electronics 50, no. 2 (2004): 517–20. http://dx.doi.org/10.1109/tce.2004.1309417.

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Peng, Xian Min, Qiang Li, Gui Chuan Zhang, Qing Lin Liu, and Bing Xu. "Research on Dual Core Mechanism of Wireless Telemetry System." Advanced Materials Research 791-793 (September 2013): 2131–35. http://dx.doi.org/10.4028/www.scientific.net/amr.791-793.2131.

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In the high-precision multi-channel wireless telemetry systems, in order to complete a variety of tasks such as the system collection and control, parameter assignment, data storage, wireless command parsing, a dual-core framework is used, in which one of the FPGA is to control c the collection board control and another is to complete the core control. This paper focuses on exploring the working mechanism of the dual-core and mutual communication mechanism which is successfully applied to the actual system.

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Nalapko, Oleksii, Oleg Sova, Andrii Shyshatskyi, et al. "Analysis of mathematical models of mobility of communication systems of special purpose radio communication systems." Technology audit and production reserves 4, no. 2(60) (2021): 39–44. http://dx.doi.org/10.15587/2706-5448.2021.237433.

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The object of research is the military radio communication system. One of the problems in improving the effectiveness of military radio communication systems is the correct description of the movement process in them. Efficient routing protocols are only possible if reliable information on network topology for network nodes is available. Thus, with this information, packets can be forwarded correctly between the sender and the recipient. Given that the mobility of individual nodes is insignificant in special wireless networks, nodes in the network show the mobility properties of a group of nod

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Kirichek, Ruslan, Alexander Paramonov, Andrei Vladyko, and Evgeny Borisov. "Implementation of the Communication Network for the Multi-Agent Robotic Systems." International Journal of Embedded and Real-Time Communication Systems 7, no. 1 (2016): 48–63. http://dx.doi.org/10.4018/ijertcs.2016010103.

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The paper proposes a structure of self-organizing communication networks of the multi-robot system. The considered networks are organized on the basis of two radio channels: to transmit control (telemetry data) and to transmit data (video flow), which have the higher bandwidth requirements. The algorithm of self-organizing network is designed and presented based on the wideband channel quality control: data of the received signal strength indicator (RSSI), the capacity and the packet error ratio (PER).

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Fedosov, Valentin, Andrey Legin, and Anna Lomakina. "Adaptive algorithm based on antenna arrays for radio communication systems." Serbian Journal of Electrical Engineering 14, no. 3 (2017): 301–12. http://dx.doi.org/10.2298/sjee1703301f.

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Trends in the modern world increasingly lead to the growing popularity of wireless technologies. This is possible due to the rapid development of mobile communications, the Internet gaining high popularity, using wireless networks at enterprises, offices, buildings, etc. It requires advanced network technologies with high throughput capacity to meet the needs of users. To date, a popular destination is the development of spatial signal processing techniques allowing to increase spatial bandwidth of communication channels. The most popular method is spatial coding MIMO to increase data transmis

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Bonisławski, Michał, Marcin HOŁUB, Tadeusz Borkowski, and Przemysław Kowalak. "A Novel Telemetry System for Real Time, Ship Main Propulsion Power Measurement." Sensors 19, no. 21 (2019): 4771. http://dx.doi.org/10.3390/s19214771.

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Modern ships are required to increase the energy efficiency and minimize fuel consumption. This paper presents the construction, main properties and exemplary measurement results of a novel system intended for main shaft power monitoring. The telemetry system consists of the stationary part, responsible for wireless supply energy transfer to the rotating part. Additional functions of the stationery unit include radio-based, bidirectional communication with the rotating, microcontroller-based unit, and Modbus-based communication with the graphical user interface. The non-stationary (rotating) p

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Broydé, Frédéric, Evelyne Clavelier, and Lucie Broydé. "The European Legislation Applicable to Medium-Range Inductive Wireless Power Transmission Systems." Advances in Electronics 2014 (July 10, 2014): 1–10. http://dx.doi.org/10.1155/2014/820398.

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Medium-range inductive wireless power transmission systems allow a sufficient power transfer without requiring close proximity between a primary coil and a secondary coil. We briefly investigate the range of a typical system and its radiated emission, from the perspectives of electromagnetic compatibility (EMC) and human exposure requirements. We then discuss the applicable legislation in the European Union, the main question being the applicability of the R&TTE or radio equipment directives. Our conclusion is that this applicability depends on multiple parameters, among which is the prese

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Velas, Andrej, Tomas Lovecek, Jan Valouch, Jacek Dworzecki, and Eva Vnencakova. "Testing Radio Signal Range of Selected Components." Communications - Scientific letters of the University of Zilina 20, no. 2 (2018): 68–77. http://dx.doi.org/10.26552/com.c.2018.2.68-77.

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The radio signals range of selected wireless components of security systems is defined by the area within which components can communicate properly. In practice, the range of communication between components is often insufficiently taken into account, which results in the system malfunction. There are cases where the radio signal range of wireless components was inadequate due to use in an environment constructed from non-transmitting materials.The installation of wireless systems requires the implementation of a testing methodology of radio-communication range and its continuous improvement.

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Lau, Kam Y., David M. Cutrer, John B. Georges, and Simon Yeung. "Fiber Optic Infrastructure for Wireless Communication Networks." International Journal of High Speed Electronics and Systems 08, no. 02 (1997): 233–46. http://dx.doi.org/10.1142/s012915649700007x.

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It is clear that to meet the new demands of wireless customers, conventional cellular service providers and upcoming Personal Communication Service (PCS) providers for conventional phone service and high bandwidth wireless LAN must upgrade their networks to provide complete radio coverage. This evolution has motivated the need for low-cost systems that transport radio signals to and from areas of poor signal coverage. The most important area where this problem must be solved is inside of buildings, since this is where people spend most of their time. Unfortunately, the in-building enviroment i

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Kim, Ilkyu, Sun-Gyu Lee, Yong-Hyun Nam, and Jeong-Hae Lee. "Investigation on Wireless Link for Medical Telemetry Including Impedance Matching of Implanted Antennas." Sensors 21, no. 4 (2021): 1431. http://dx.doi.org/10.3390/s21041431.

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The development of biomedical devices benefits patients by offering real-time healthcare. In particular, pacemakers have gained a great deal of attention because they offer opportunities for monitoring the patient’s vitals and biological statics in real time. One of the important factors in realizing real-time body-centric sensing is to establish a robust wireless communication link among the medical devices. In this paper, radio transmission and the optimal characteristics for impedance matching the medical telemetry of an implant are investigated. For radio transmission, an integral coupling

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Mykhatskyi, Oleksii. "INFORMATIVE SAFETY OF UNMANNED AVIATION SYSTEMS RADIO COMMUNICATION CHANNELS." Cybersecurity: Education, Science, Technique, no. 1 (2018): 56–62. http://dx.doi.org/10.28925/2663-4023.2018.1.5662.

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An analysis of navigation and command-telemetric radio channels is used for exploitation of unmanned aviation systems are proceeds. The classification of radio channels vulnerability is tied to the modes of unmanned aerial vehicles control and their safe exploitation key terms. The criteria of flight mission feasibility and applicability of the different control modes are set in the conditions of violation at the radio channels data communication. The signs of successful flight task processing are the aircraft returning and landing to the set point, absence of distortions or rejections of pres

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Peng, Yunxiao, Kazuyuki Saito, and Koichi Ito. "Antenna Design for Impulse-Radio-Based Wireless Capsule Endoscope Communication Systems." IEEE Transactions on Antennas and Propagation 66, no. 10 (2018): 5031–42. http://dx.doi.org/10.1109/tap.2018.2854360.

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Hoon Kim, Jae Hun Cho, Sangho Kim, et al. "Radio-Over-Fiber System for TDD-Based OFDMA Wireless Communication Systems." Journal of Lightwave Technology 25, no. 11 (2007): 3419–27. http://dx.doi.org/10.1109/jlt.2007.906807.

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Kiourti, Asimina, and Konstantina S. Nikita. "Design of Implantable Antennas for Medical Telemetry." International Journal of Monitoring and Surveillance Technologies Research 1, no. 1 (2013): 16–33. http://dx.doi.org/10.4018/ijmstr.2013010102.

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Implantable Medical Devices (IMDs) with wireless telemetry functionalities in the radio-frequency (RF) range are recently attracting significant scientific interest for medical prevention, diagnosis, and therapy. One of the most crucial challenges for IMDs is the design of the integrated implantable antenna which enables bidirectional wireless communication between the IMD and exterior monitoring/control equipment. In this paper, a parametric model of a miniature implantable antenna is initially proposed, which can be adjusted to suit any antenna design and implantation scenario requirements i

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Olberg, P. "Multimedia Sensor Networks Based on Ultra-wideband Chaotic Radio Pulses." Bulletin of Science and Practice 7, no. 2 (2021): 220–26. http://dx.doi.org/10.33619/2414-2948/63/21.

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The fast direction in information and communication systems of the wireless sensor network is discussed. Special attention was paid to ultra-wideband wireless sensor networks, which use chaotic radio pulses as information carriers for communication between sensor nodes. The creation of such systems became possible after many years of research on the creation and management of chaos in electronic systems. The requirements for transceivers for transmitting multimedia data in wireless sensor networks and the characteristics of existing systems are considered. The prospects of using ultra-wideband

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Huening, Felix, Holger Heuermann, Franz-Josef Wache, and Rami Audisho Jajo. "A new wireless sensor interface using dual-mode radio." Journal of Sensors and Sensor Systems 7, no. 2 (2018): 507–15. http://dx.doi.org/10.5194/jsss-7-507-2018.

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Abstract. The integration of sensors is one of the major tasks in embedded, control and “internet of things” (IoT) applications. For the integration mainly digital interfaces are used, starting from rather simple pulse-width modulation (PWM) interface to more complex interfaces like CAN (Controller Area Network). Even though these interfaces are tethered by definition, a wireless realization is highly welcome in many applications to reduce cable and connector cost, increase the flexibility and realize new emerging applications like wireless control systems. Currently used wireless solutions li

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Yılmaz, Mustafa Harun, Ertuğrul Güvenkaya, Haji M. Furqan, Selçuk Köse, and Hüseyin Arslan. "Cognitive Security of Wireless Communication Systems in the Physical Layer." Wireless Communications and Mobile Computing 2017 (2017): 1–9. http://dx.doi.org/10.1155/2017/3592792.

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While the wireless communication systems provide the means of connectivity nearly everywhere and all the time, communication security requires more attention. Even though current efforts provide solutions to specific problems under given circumstances, these methods are neither adaptive nor flexible enough to provide security under the dynamic conditions which make the security breaches an important concern. In this paper, a cognitive security (CS) concept for wireless communication systems in the physical layer is proposed with the aim of providing a comprehensive solution to wireless securit

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Bargarai, Faiq A. Mohammed, Adnan Mohsin Abdulazeez, Volkan Müjdat Tiryaki, and Diyar Qader Zeebaree. "Management of Wireless Communication Systems Using Artificial Intelligence-Based Software Defined Radio." International Journal of Interactive Mobile Technologies (iJIM) 14, no. 13 (2020): 107. http://dx.doi.org/10.3991/ijim.v14i13.14211.

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The wireless communication system was investigated by novel methods, which produce an optimized data link, especially the software-based methods. Software-Defined Radio (SDR) is a common method for developing and implementing wireless communication protocols. In this paper, SDR and artificial intelligence (AI) are used to design a self-management communication system with variable node locations. Three affected parameters for the wireless signal are considered: channel frequency, bandwidth, and modulation type. On one hand, SDR collects and analyzes the signal components while on the other han

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Abbasova, T. S., E. M. Abbasov, and Kuang Thieu Nguyen. "Development of computer models for the study of characteristics and optimization of telemetric monitoring and control systems." Informacionno-technologicheskij vestnik 14, no. 4 (2017): 47–61. http://dx.doi.org/10.21499/2409-1650-2017-4-47-61.

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A radio channel with Butterworth filters for monitoring and telemetry systems with single-band quadrature frequency manipulation is created. The communication channel for the speed of 180 000 (Bit / s) was investigated for the presence of a minimum of inter-symbol distortion. The organizational and technical measures for designing, testing and setting up a digital data transmission stand in the main band (without a carrier) are described to justify the theoretical positions. The characteristics of the digital communication channel .

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Royenkov, Dmitriy, Pavel Plekhanov, and Vladimir Shmatchenko. "Radio communication systems high-speed railway transport." Bulletin of scientific research results, no. 3 (October 17, 2017): 57–68. http://dx.doi.org/10.20295/2223-9987-2017-3-57-68.

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Objective: To study the main approaches to organization of radio communication on high-speed railroad transport, to determine the requirements for functional capabilities and the structure of radio communication systems. Methods: The analysis of modern international and home practice in the sphere of radio telecommunication systems was applied for railway transport, on the basis of application strategy of interconnected indices’ complex, including reliability, availability, maintainability and safety (Reliability, Availability, Maintainability and Safety – RAMS) and cost (Life Cycle Cost – LCC

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Gavalas, Damianos, Modestos Stavrakis, Periklis Chatzimisios, Zhichao Cao, and Xiaolong Zheng. "Wireless Systems and Networks in the IoT." Sensors 20, no. 8 (2020): 2279. http://dx.doi.org/10.3390/s20082279.

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This Special Issue is focused on breakthrough developments in the field of Wireless Systems and Networks in the IoT. The selected contributions report current scientific progress in a wide range of topics covering clock error compensation in sensor networks, backscatter communication networks, Radio-Frequency Identification (RFID)-based inventory management, resource allocation in Long-Term Evolution (LTE)/LTE-A, (Long Range Wide-Area Network (LoRaWAN) modeling and key generation for the IoT.

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Duarte, Luis, Rodolfo Gomes, Carlos Ribeiro, and Rafael F. S. Caldeirinha. "A Software-Defined Radio for Future Wireless Communication Systems at 60 GHz." Electronics 8, no. 12 (2019): 1490. http://dx.doi.org/10.3390/electronics8121490.

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This paper reports on a complete end-to-end 5G mmWave testbed fully reconfigurable based on a FPGA architecture. The proposed system is composed of a baseband/low-IF processing unit, and a mmWave RF front-end at both TX/RX ends. In particular, the baseband unit design is based on a typical agile digital IF architecture, enabling on-the-fly modulations up to 256-QAM. The real-time 5G mmWave testbed, herein presented, adopts OFDM as the transmission scheme waveform, which was assessed OTA by considering the key performance indicators, namely EVM and BER. A detailed overview of system architectur

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Chen, Riqing, Jun Wang, Ruiquan Lin, and Xiangning Zhao. "Spectrum Sensing Based on Nonparametric Autocorrelation in Wireless Communication Systems under Alpha Stable Noise." Mobile Information Systems 2016 (2016): 1–6. http://dx.doi.org/10.1155/2016/6753830.

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Cognitive radio is regarded as a core technology to support wireless information systems. Spectrum sensing is one of the key steps to achieve cognitive radio technology. To address this problem in the presence of Alpha stable noise in wireless communication systems, we propose a nonparametric autocorrelation method, which takes advantages of the characteristics of signal autocorrelation and noise nonstationarity. The autocorrelated signal is distinguished from Alpha stable noise. As a result, the proposed method is immune from noise uncertainty. Simulation results show the validity of the prop

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Egorov, A., A. Lomakin, and D. Pantenkov. "Mathematical Models of Satellite Communication Systems with Unmanned Aerial Vehicles and Counter-Means of Radio Control. Part 1." Proceedings of Telecommunication Universities 5, no. 3 (2019): 19–26. http://dx.doi.org/10.31854/1813-324x-2019-5-3-19-26.

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Currently, satellite radio communication is the main type of radio communication related to the majority of special purpose mobile objects, including unmanned aerial vehicles (UAV) of heavy and super heavy classes of long flight duration, which are forced to move over long distances up to several thousand kilometers from the take of place (airport). In this point we face the problem of quality of the channel of the satellite radio communication line on its entire way between the transmitting and receiving devices, including providing the interference protection, stealth and secrecy of transmis

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Ahmadi, Ahmadi, Suprayitno Suprayitno, Zaenal Syahlan, and Robert Radiyanto. "DESIGN AND DEVELOPMENT OF TACTICAL MONITORING FORCE USING ONLINE BASED TELEMETRY SYSTEMS FOR MATAN BATALYON COMMANDO PASKHAS TEAM." JOURNAL ASRO 11, no. 2 (2020): 112. http://dx.doi.org/10.37875/asro.v11i2.274.

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The operational equipment of the Security and Rescue Team (Matan) of the Paskhas Command Battalion called the Integrated Personal Protection (IPP Set) is currently incomplete because monitoring of the implementation of the Matan Team's activities is limited to reports through radio / HT communication tools, so that in decision making actions by the Operations Commander Puskodalops is not optimal and accurate according to the conditions in the field. Therefore we need a system that can monitor the movements of the Matan Team that can monitor the position and visual forces in real time. This mon

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Grishin, I., and A. Kalinkina. "Review of the Multicarrier Modulation Techniques used in Modern Wireless Communications." Telecom IT 8, no. 2 (2020): 55–66. http://dx.doi.org/10.31854/2307-1303-2020-8-2-55-66.

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This article provides an overview of the technologies for generating radio signals, such as orthogonal frequency division multiplexing and its modifications: universal filtered multicarrier and filter bank multi-carrier currently used in wireless communication networks. Subject of research: methods of multicar-rier modulation. Main results: Overview of modern methods of forming multicarrier signals in radio communication systems. A number of computational experiments have been performed to compare the characteristics of signal localization, peak-to-average ratios and spurious emissions. Practi

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Yuningsih, Siti Hadiaty, Sudradjat Supian, Sukono Sukono, and Subiyanto Subiyanto. "Wireless Chaos-Based Communication System: Literature Review." International Journal of Quantitative Research and Modeling 2, no. 1 (2021): 46–54. http://dx.doi.org/10.46336/ijqrm.v2i1.128.

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Since the early 1990s, a slew of chaotic-based communication systems have been proposed, all of which take advantage of chaotic waveform properties. The inspiration stems from the substantial benefits that this form of nonlinear signal offers. Many communication schemes and applications have been specifically designed for chaos-based communication systems to achieve this goal, with energy, data rate, and synchronization awareness being taken into account in most designs. However, non-coherent chaos-based systems have recently received a lot of attention in order to take advantage of the benefi

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Прозоровский, Е. Е., and Ю. В. Редькин. "Improving the efficiency of routing methods in wireless networks of telemetry systems." MORSKIE INTELLEKTUAL`NYE TEHNOLOGII), no. 2(52) (June 20, 2021): 92–96. http://dx.doi.org/10.37220/mit.2021.52.2.075.

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Одна из основных проблем построения автоматизированных систем телеметрии и управления – организация надежной связи между удаленными объектами и пунктами сбора информации. Использование беспроводных самоорганизующихся сетей является наиболее приемлемым решением данной задачи. Подобные сети характеризуются: высокой надежностью и живучестью; достаточной пропускной способностью; низкой стоимостью эксплуатации; простотой перемещения и оперативностью развертывания. В настоящее время разработано множество алгоритмов и протоколов, обеспечивающих автоматическое конфигурирование таких сетей. Однако, нес

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Abdullah Saeed, Rebin. "Performance Comparison of Handover mechanisms in mobile wireless communication networks for Broadband Wireless Access Systems." International Journal of Computer Communication and Informatics 2, no. 1 (2020): 25–37. http://dx.doi.org/10.34256/ijcci2014.

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Mobility is the mobile communication characteristics which make it diverse and attractive for all. Wireless communication is now attractive to the whole world and provides the ability of users to communicate very active. Transferring the users from one radio network to another is accomplishing the IT. The process is called the handover process. The transfer takes place by adjusting the duration of the soft transfers, the area size and either by cell crossing or by deterioration in the signal quality of the current channel — the brief overview of handover, Handover in WiMAX and LTE, types of ha

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Wang, Junchao, Kaining Han, Zhiyu Chen, et al. "A Software Defined Radio Evaluation Platform for WBAN Systems." Sensors 18, no. 12 (2018): 4494. http://dx.doi.org/10.3390/s18124494.

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In recent years, the Wireless Body Area Network (WBAN) concept has attracted significant academic and industrial attention. WBAN specifies a network dedicated to collecting personal biomedical data from advanced sensors that are then used for health and lifestyle purposes. In 2012, the 802.15.6 WBAN standard was released by the Institute of Electrical and Electronics Engineers (IEEE), which regulates and specifies the configurations of WBAN. Compared to the prevailing wireless communication technologies such as Bluetooth and ZigBee, the WBAN standard has the advantages of ultra-low power consu

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Paz-Penagos, Hernan. "Use of radio telemetry to determine presence of cattle stress indicators before slaughter." Revista Colombiana de Biotecnología 21, no. 1 (2019): 144–52. http://dx.doi.org/10.15446/rev.colomb.biote.v21n1.70294.

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This study was conducted in order to determine the presence of stress in cattle prior to slaughter in situations such as loading, trans-porting, unloading, water and food deprivation during mobilization and waiting in the corral in overcrowded and inclement condi-tions. Samples were five bovines with ages of 40 months on average, castrated males, from the San Martinero criolla breed, whichwere transported along 144 Km, by land, from the farm located in Acacias, department of Meta, to the ICTA slaughter plant in Bo-gotá. The stress indicators were identified by differences in body temperature,

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Abid, Muhammad, Usman Khalid, and Owais Owais. "A New Sensing Antenna for Cognitive Radio Front End and Wireless Communication Systems." International Journal of Scientific Research in Knowledge 3, no. 7 (2015): 172–80. http://dx.doi.org/10.12983/ijsrk-2015-p0172-0180.

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Honglin Hu, Jijun Luo, and Hsiao-Hwa Chen. "Radio resource management for cooperative wireless communication systems with organized beam-hopping techniques." IEEE Wireless Communications 15, no. 2 (2008): 100–109. http://dx.doi.org/10.1109/mwc.2008.4492983.

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Demichev, Maksim Sergeevich, Konstantin Eduardovich Gaipov, Alena Alekseevna Demicheva, Rinat Faitulovich Faizulin, and Dmitrii Olegovich Malyshev. "Frequency scheduling algorithm with the allocation of the main and additional frequency bands." Программные системы и вычислительные методы, no. 2 (February 2021): 36–62. http://dx.doi.org/10.7256/2454-0714.2021.2.35214.

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The subject of this research is the frequency planning algorithm for networks with an arbitrary topology of links over radio channels. The algorithm determines the total number of non-overlapping frequency ranges for the entire network and provides the distribution of each frequency range between communication nodes. The algorithm consists of two stages: at the first stage, there is a search and simultaneous distribution of frequency channels, the so-called main frequency range, as a result, only one frequency range is allocated to each node; at&nbsp;the second stage, additional frequency

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Badr, Basem M., Robert Somogyi-Csizmazia, Paul Leslie, Kerry R. Delaney, and Nikolai Dechev. "Design of a wireless measurement system for use in wireless power transfer applications for implants." Wireless Power Transfer 4, no. 1 (2017): 21–32. http://dx.doi.org/10.1017/wpt.2016.12.

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The performance of wireless power transfer (WPT) systems is a function of many parameters such as resonance matching, coil quality factor, system impedance match, and others. When designing and testing WPT systems, reliable measurement of system performance is essential. In our application, we use WPT to power biomedical implants for telemetry acquisition from small rodents, where rodent behavior data is used to study disease models. Such an application employs a large primary coil and a much smaller moving secondary coil, which can be defined as a loosely coupled WPT (LCWPT) system. This pape

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Imoize, Agbotiname Lucky, Augustus Ehiremen Ibhaze, Aderemi A. Atayero, and K. V. N. Kavitha. "Standard Propagation Channel Models for MIMO Communication Systems." Wireless Communications and Mobile Computing 2021 (February 15, 2021): 1–36. http://dx.doi.org/10.1155/2021/8838792.

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The field of wireless communication networks has witnessed a dramatic change over the last decade due to sophisticated technologies deployed to satisfy various demands peculiar to different data-intensive wireless applications. Consequently, this has led to the aggressive use of the available propagation channels to fulfill the minimum quality of service (QoS) requirement. A major barometer used to gauge the performance of a wireless communication system is the spectral efficiency (SE) of its communication channels. A key technology used to improve SE substantially is the multiple input multip

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Kubrak, O. M., V. O. Cholpanov, and I. M. Dyukov. "ESTIMATION OF BIT ERROR PROBABILITIES OF COMMUNICATION SYSTEMS WITH FM BROADBAND SIGNALS." Проблеми створення, випробування, застосування та експлуатації складних інформаційних систем, no. 18 (December 30, 2020): 23–31. http://dx.doi.org/10.46972/2076-1546.2020.18.03.

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Today, wireless communication is one of the most promising areas in the field of communications. Modern radio communication systems and facilities operate in a complex electronic environment. The development of next-generation wireless networks depends on both transmitting and receiving equipment, which must provide the high data rates needed to maintain a reliable level of interference protection. The main factors influencing the quality of radio communication are natural and intentional interference in the radio wave propagation channel, multi-beam propagation, bandwidth limitation and the n

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Romaszko, Sylwia, and Petri Mähönen. "Quorum Systems towards an Asynchronous Communication in Cognitive Radio Networks." Journal of Electrical and Computer Engineering 2012 (2012): 1–22. http://dx.doi.org/10.1155/2012/753541.

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This paper reviews quorum systems (QS) from the perspective of cognitive radio networks. Quorum systems were originally developed for and widely used in the scope of operating systems. Recently, quorum systems have been also started to be applied to wireless communications. The objective of this paper is threefold. First, the paper provides survey and guidance on the use of quorum systems. Second, it shows that QS properties provide an interesting alternative towards an asynchronous communication in cognitive radio ad hoc networks (CRANs). Due to properties of quorum systems it is possible to

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Pham, Thu A., Lam T. Vu, and Ngoc T. Dang. "Bidirectional Relaying MMW Radio over Plastic Optical Fiber Systems in Home Area Networks." Journal of Science and Technology: Issue on Information and Communications Technology 4, no. 1 (2018): 21. http://dx.doi.org/10.31130/jst.2018.63.

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In this paper, we propose a novel home area networks (HAN) architecture using MMW radio-over-plastic optical fiber (MMW/RoPOF) to provide high-speed wireless connections to end users. The proposed HAN can support bidirectional half-duplex communication between any pair of mobile stations (MSs) thanks to the use of analog network coding in optical domain implemented at a center station (CS). We analyze the performance of an end-to-end communication link between two MSs under the impact of major physical impairments originated from both fiber and wireless links. The numerical results in terms of

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Kowal, Michał, Sławomir Kubal, Piotr Piotrowski, and Ryszard Zieliński. "Operational characteristic of wireless WiMax and IEEE 802.11x systems in underground mine environments." International Journal of Electronics and Telecommunications 56, no. 1 (2010): 81–86. http://dx.doi.org/10.2478/v10177-010-0010-7.

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Operational characteristic of wireless WiMax and IEEE 802.11x systems in underground mine environments The paper presents research results pertaining to transmission parameters of wireless communication systems, based on WiMax and IEEE 802.11x radio interfaces. Research was performed in severe operating conditions of an underground mine - testing various parameters, such as: throughput, delays and maximum range.

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Bouhlel, Asma, and Anis Sakly. "Impact of IQ Imbalance on RIS-Assisted SISO Communication Systems." Wireless Communications and Mobile Computing 2021 (August 11, 2021): 1–12. http://dx.doi.org/10.1155/2021/6673807.

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Reconfigurable intelligent surface (RIS) for wireless networks has emerged as a promising future transmission technique to create smart radio environments that improve the system performance by turning the wireless channel into an adjustable system block. However, transceivers come with various hardware impairments, such as phase noise and in-phase/quadrature-phase imbalance (IQI). Hence, for robust configuration of RIS-based communication under practical conditions, assuming the identical performance analysis when subject to IQI, will lead to inaccurate analysis. In this paper, the implementa

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Saud, Muhammad Saad, Iqrar Ahmed, Timo Kumpuniemi, and Marcos Katz. "Reconfigurable optical-radio wireless networks: Meeting the most stringent requirements of future communication systems." Transactions on Emerging Telecommunications Technologies 30, no. 2 (2019): e3562. http://dx.doi.org/10.1002/ett.3562.

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