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Journal articles on the topic 'Wireless communication systems – Standards'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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1

DeSimone, Antonio, and Sanjiv Nanda. "Wireless data: Systems, standards, services." Wireless Networks 1, no. 3 (1995): 241–53. http://dx.doi.org/10.1007/bf01200844.

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Heynicke, Ralf, Dmytro Krush, Christoph Cammin, et al. "IO-Link Wireless enhanced factory automation communication for Industry 4.0 applications." Journal of Sensors and Sensor Systems 7, no. 1 (2018): 131–42. http://dx.doi.org/10.5194/jsss-7-131-2018.

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Abstract. In the context of the Industry 4.0 initiative, Cyber-Physical Production Systems (CPPS) or Cyber Manufacturing Systems (CMS) can be characterized as advanced networked mechatronic production systems gaining their added value by interaction with the ambient Industrial Internet of Things (IIoT). In this context appropriate communication technologies and standards play a vital role to realize the manifold potential improvements in the production process. One of these standards is IO-Link. In 2016 more than 5 million IO-Link nodes have been produced and delivered, still gaining increasin

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Al-Moliki, Yahya Mohammed Hameed, Kamarul Ariffin Bin Noordin, MHD Nour Hindia, and Mohd Fadzli Bin Mohd Salleh. "Concatenated RS-Convolutional Codes for Cooperative Wireless Communication." Open Electrical & Electronic Engineering Journal 7, no. 1 (2013): 9–20. http://dx.doi.org/10.2174/1874129001307010009.

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In the last few years, several works have investigated the performance of cooperative wireless systems with various types of channel codes such as Low Density Parity Check (LDPC), Turbo, CRC, convolutional and recently Reed Solomon (RS) codes. These cooperative schemes give power to single antenna mobiles to originate virtual multiple antennas transmitter, MIMO system, by sharing their antennas so that diversity gain is achieved. The most common cooperative schemes are decode and forward (DF) and coded cooperation (CC). Concatenated Reed Solomon and convolutional codes have been used by severa

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Zhou, Yun. "A Video Compression Method for Wireless Transmission." Advanced Materials Research 532-533 (June 2012): 1167–71. http://dx.doi.org/10.4028/www.scientific.net/amr.532-533.1167.

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With the ever-increasing expansion of wireless voice and data plan demands, bandwidth constrained wireless channels intervened with mobility issues lay out a great challenge in the hardware configuration, software development and algorithm design of communication systems. This paper presents our work on a modular and standards-independent DSP-based testbed designed for real-time video communication over low-bandwidth channels. In particular, the real-time transmission of MPEG-4 video and JPEG2000 still images over the Bluetooth wireless standard is demonstrated here. The testbed was designed t

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Sun, Liling, Maowei He, Jingtao Hu, Yunlong Zhu, and Hanning Chen. "A Butterfly-Shaped Wideband Microstrip Patch Antenna for Wireless Communication." International Journal of Antennas and Propagation 2015 (2015): 1–8. http://dx.doi.org/10.1155/2015/328208.

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A novel butterfly-shaped patch antenna for wireless communication is introduced in this paper. The antenna is designed for wideband wireless communications and radio-frequency identification (RFID) systems. Two symmetrical quasi-circular arms and two symmetrical round holes are incorporated into the patch of a microstrip antenna to expand its bandwidth. The diameter and position of the circular slots are optimized to achieve a wide bandwidth. The validity of the design concept is demonstrated by means of a prototype having a bandwidth of about 40.1%. The return loss of the butterfly-shaped ant

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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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Rathee, Amit, Manu Phogat, and Mukesh. "Future Trends in 5g Wireless Communication: A Survey." International Journal of Advanced Research in Computer Science and Software Engineering 7, no. 7 (2017): 57. http://dx.doi.org/10.23956/ijarcsse.v7i7.98.

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In modern era the exponential growth in smartphones with better applications need higher efficiency as compare with 4G devices. The data rate and spectrum efficiency is increasing day by day. Although 4G system provided much better services and better latency rate, there is still a gap between people’s requirements and what 4G system is providing. This article gives an overview of key enabling technologies which could be used in future 5G wireless systems. Some of these are Massive MIMO, Device-to-Device (D2D) communications, full duplex technique, millimeter wave communications, Internet of t

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Srikanth Kamath, H., Sreelakshmi ., Muthyala Siri Chandana Reddy, and Chelsea Camilo Monteiro. "Overview of Device-to-Device Communication and Vehicle-to-Vehicle Communication." International Journal of Engineering & Technology 7, no. 4.36 (2018): 859. http://dx.doi.org/10.14419/ijet.v7i4.36.24546.

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5G (5th generation mobile networks or 5th generation wireless systems) is the next major phase of mobile telecommunications standards beyond the current 4G LTE (Long-Term Evolution) standards. 5G technology needs to be specified, developed, and deployed by a variety of industry players including network equipment vendors, network operators, semiconductor vendors, and device manufacturers. The scope of 5G will range from mobile phones to next-generation automobiles. Device to Device (D2D) Communication is regarded as a promising technology in 5G to provide low power, high data rate and low late

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Krush, Dmytro, Christoph Cammin, Ralf Heynicke, Gerd Scholl, and Bernd Kaercher. "A wireless communication system for energy and environmental monitoring." Journal of Sensors and Sensor Systems 6, no. 1 (2017): 19–26. http://dx.doi.org/10.5194/jsss-6-19-2017.

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Abstract. Custom-fit communication systems are key elements in modern cyber-physical sensor systems. Therefore a wireless communication system (WCS) for sensor/actuator communication has been developed to facilitate energy and environmental monitoring on the shop floor of industrial production sites. Initially, the distinct demands and requirements are described. As the WCS has been designed for new installations as well as for retrofitting already installed facilities, the WCS has to be able to coexist with other wireless communication systems already allocated in the same frequency band. The

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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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Choi, Young B., and Matthew E. Bunn. "The Security Risks and Challenges of 5G Communications." International Journal of Cyber Research and Education 3, no. 2 (2021): 46–53. http://dx.doi.org/10.4018/ijcre.2021070104.

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With the introduction of the 5th generation of wireless systems and communications (5G) comes new risks and challenges. This paper explores the potential security challenges of 5G communication compared with legacy cellular networks and prior generations of communication standards. This paper defines what 5G is and how it affects our lives on a daily basis. It further discusses the new security features involving different technologies applied to 5G, such as heterogeneous networks, device-to-device communications, massive multiple-input multiple-output, software-defined networks, and the inter

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Čuljak, Ivana, Željka Lučev Vasić, Hrvoje Mihaldinec, and Hrvoje Džapo. "Wireless Body Sensor Communication Systems Based on UWB and IBC Technologies: State-of-the-Art and Open Challenges." Sensors 20, no. 12 (2020): 3587. http://dx.doi.org/10.3390/s20123587.

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In recent years there has been an increasing need for miniature, low-cost, commercially accessible, and user-friendly sensor solutions for wireless body area networks (WBAN), which has led to the adoption of new physical communication interfaces providing distinctive advantages over traditional wireless technologies. Ultra-wideband (UWB) and intrabody communication (IBC) have been the subject of intensive research in recent years due to their promising characteristics as means for short-range, low-power, and low-data-rate wireless interfaces for interconnection of various sensors and devices p

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Hsiao, Rong Shue, Ding Bing Lin, Hsin Piao Lin, Shu Chun Cheng, and Chen Hua Chung. "A Robust Occupancy-Based Building Lighting Framework Using Wireless Sensor Networks." Applied Mechanics and Materials 284-287 (January 2013): 2015–20. http://dx.doi.org/10.4028/www.scientific.net/amm.284-287.2015.

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Wireless Sensor Networks are based on the ZigBee standard. ZigBee uses the IEEE 802.15.4 physical and MAC (medium access control) layers to provide standards-based reliable wireless data transfer. Also, ZigBee provides low-power wireless connectivity features. The features allow ZigBee-based products to be installed easily and cost-effectively. Thus, this technology has been attracting extensive research and development efforts to replace the traditional wired solutions for Building Automation Systems. However, wireless communications in indoor building environments are prone to be influenced

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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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Sayed Kotb, Mohamed El, Wagdy R. Anis, and Ahmed A. Abd-Elhafez. "Towards using UAV for improving 5G cellular communication systems." Indonesian Journal of Electrical Engineering and Computer Science 23, no. 1 (2021): 265. http://dx.doi.org/10.11591/ijeecs.v23.i1.pp265-272.

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Unmanned aerial vehicles (UAVs) have sparked a lot of interest in the wireless networking community as an emerging subject in aerial robotics. The UAV environment can be used to improve UAV communications in various ways. These smart devices cater for a broad variety of wireless technologies and applications because of UAV's inherent features related to versatile mobility in 3D space, autonomous operations as well as intelligent positioning. This study will investigate the convergence synergies between 5G/B5G mobile systems and UAV technologies, with the UAV being integrated into current cellu

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Gardašević, Gordana, Konstantinos Katzis, Dragana Bajić, and Lazar Berbakov. "Emerging Wireless Sensor Networks and Internet of Things Technologies—Foundations of Smart Healthcare." Sensors 20, no. 13 (2020): 3619. http://dx.doi.org/10.3390/s20133619.

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Future smart healthcare systems—often referred to as Internet of Medical Things (IoMT) – will combine a plethora of wireless devices and applications that use wireless communication technologies to enable the exchange of healthcare data. Smart healthcare requires sufficient bandwidth, reliable and secure communication links, energy-efficient operations, and Quality of Service (QoS) support. The integration of Internet of Things (IoT) solutions into healthcare systems can significantly increase intelligence, flexibility, and interoperability. This work provides an extensive survey on emerging I

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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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C. A. D, Pahalson, and Nanchen Nimyel Caleb. "5G Wireless Communications for Future Internet of Things: The Need for Free-Space Optical/Visible Light Communication Technology." International Journal of Computer Science and Mobile Computing 8, no. 12 (2019): 124–32. http://dx.doi.org/10.47760/ijcsmc.2019.v08i12.001.

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IoT networks have some important characteristics. Some key requirements of the IoT are low device cost, low deployment cost, high energy efficiency, high security and privacy, and support for a large number of devices. The LED-based OWC systems have all the great features required to support the IoT. The key technologies currently used for IoT connectivity are Zigbee, Bluetooth Low Energy (BLE), and WiFi. ZigBee is a low-cost, low-power, wireless mesh network standard that has been widely used for IoT applications. The Internet of Things (IoT) based on the tactile internet will also be an esse

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Rajasekhar, J., and Dr JKR Sastry. "An approach to hybridisation of embedded system networks." International Journal of Engineering & Technology 7, no. 2.7 (2018): 384. http://dx.doi.org/10.14419/ijet.v7i2.7.10748.

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Embedded systems can be networked using either wired or wireless technologies. ES systems when networked using wires can communicate serially over a bus using the technologies such as CAN, I2C, USB, RS485, and Fire wire. These standards differ in many ways which include arbitration, synchronization, address resolution, timing, type of communication etc. Embedded systems can also be network using wireless technologies which exits in many versions.Several applications these days are requiring more than one communication technology. Several sub-systems are developed using a networking method and

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Pierucci, Laura. "Challenges for Teaching Wireless Communications Standards at the Graduate Level." Education Sciences 9, no. 4 (2019): 298. http://dx.doi.org/10.3390/educsci9040298.

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Telecom operators and companies ask for graduates with a specific education on the standards of the Institute of Electrical and Electronic Engineers (IEEE) or the 3rd Generation Partnership Project (3GPP), and the University curricula must consider these needs. The standards are written in a technical form, in a language understandable only by experts, and the technical details and algorithms are not often outlined. Therefore, a new educational methodology must be applied because the teachers have to bridge the gap between the basic knowledge (and the poor technical language) of students and t

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Popov, Valentin, and Alexey Shevchenko. "Analysis of standards and norms of electromagnetic irradiation levels in wireless communication systems on railway transport." Procedia Computer Science 149 (2019): 239–45. http://dx.doi.org/10.1016/j.procs.2019.01.129.

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Kumar Vishnoi, Manoj, and Satya Sai Srikant. "Design Considerations of Reconfigurable CMOS Mixers for Multi-Standard Communication Receiver Systems." International Journal of Reconfigurable and Embedded Systems (IJRES) 7, no. 3 (2018): 160. http://dx.doi.org/10.11591/ijres.v7.i3.pp160-166.

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This paper has been carried out the study of reconfigurable wide-band mixers that can do the frequency conversion and gain variation standards with low noise and high linearity used in multi-mode and multi-standard receivers. Over the last few years reconfigurability has become very popular in adopting technology to meet the wideband wireless communication specifications that is compatible with multi-standards like GPS (1.57 GHz), WLAN (2.4 GHz - 5.9 GHz), Bluetooth (2.402 – 2.483 GHz) and ZigBee (0.784 - 0.915 GHz) in low power consumption environment. The reconfigurability can be achieved be

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Kumar Vishnoi, Manoj, and Satya Sai Srikant. "Design Considerations of Reconfigurable CMOS Mixers for Multi-Standard Communication Receiver Systems." International Journal of Reconfigurable and Embedded Systems (IJRES) 7, no. 3 (2018): 166. http://dx.doi.org/10.11591/ijres.v7.i3.pp166-172.

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This paper has been carried out the study of reconfigurable wide-band mixers that can do the frequency conversion and gain variation standards with low noise and high linearity used in multi-mode and multi-standard receivers. Over the last few years reconfigurability has become very popular in adopting technology to meet the wideband wireless communication specifications that is compatible with multi-standards like GPS (1.57 GHz), WLAN (2.4 GHz - 5.9 GHz), Bluetooth (2.402 – 2.483 GHz) and ZigBee (0.784 - 0.915 GHz) in low power consumption environment. The reconfigurability can be achieved be

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O'Brien, Dominic, Sujan Rajbhandari, and Hyunchae Chun. "Transmitter and receiver technologies for optical wireless." Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 378, no. 2169 (2020): 20190182. http://dx.doi.org/10.1098/rsta.2019.0182.

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Providing a reliable link, with sufficient signal-to-noise ratio (SNR) and bandwidth to deliver high-capacity communications is a critical challenge for optical wireless (OW) communications and understanding and jointly optimizing the performance of the transmitter and receiver subsystems is a key part of this. At the transmitter a source of light, either a laser or a light-emitting diode, must be modulated with the communications signal. The resulting emission must be directed, using optics or steering systems, as required for the particular application, and must be within any safety levels s

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Seo, DongBack. "The Significance of Government's Role in Technology Standardization." Journal of Cases on Information Technology 12, no. 1 (2010): 63–73. http://dx.doi.org/10.4018/jcit.2010010105.

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For first generation (1G) wireless communications technology standards, the Japanese government’s early decision provided an opportunity for its national manufacturers to be first movers in the global market, while the late development of wireless communications in Korea made the Korean market dependent on foreign manufacturers by adopting the U.S. standard (AMPS). Moving toward the 2G wireless technology market, both countries decided to develop standards instead of adopting a technology from outside their regions. Japan developed its own standard, PDC, while Korea developed CDMA systems with

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Danmanee, Tanapoom, Kulit Na Nakorn, and Kultida Rojviboonchai. "CU-MAC: A Duty-Cycle MAC Protocol for Internet of Things in Wireless Sensor Networks." ECTI Transactions on Electrical Engineering, Electronics, and Communications 16, no. 2 (2018): 30–43. http://dx.doi.org/10.37936/ecti-eec.2018162.171332.

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Nowadays “Internet of Things” or IoT becomes the most popular technology in the Internet system. Types of devices and sensors have been connected as a network of devices and sensors. While a wireless sensor network is a traditional network of sensors that can be considered as a beginning point of IoT systems. Currently, these sensor data are not only exchanged within a local network but also are delivered to other devices in the Internet. Consequently, well-known organizations such as IEEE, IETF, ITU-T and ISO/IET are trying to set standards for wireless sensor devices in IoT systems. The reco

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Ahmad, Ikhlas, Haris Dildar, Wasi Ur Rehman Khan, et al. "Frequency Reconfigurable Antenna for Multi Standard Wireless and Mobile Communication Systems." Computers, Materials & Continua 68, no. 2 (2021): 2563–78. http://dx.doi.org/10.32604/cmc.2021.016813.

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Naranjo-Hernández, David, Amparo Callejón-Leblic, Željka Lučev Vasić, MirHojjat Seyedi, and Yue-Ming Gao. "Past Results, Present Trends, and Future Challenges in Intrabody Communication." Wireless Communications and Mobile Computing 2018 (March 11, 2018): 1–39. http://dx.doi.org/10.1155/2018/9026847.

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Intrabody communication (IBC) is a wireless communication technology using the human body to develop body area networks (BANs) for remote and ubiquitous monitoring. IBC uses living tissues as a transmission medium, achieving power-saving and miniaturized transceivers, making communications more robust against external interference and attacks on the privacy of transmitted data. Due to these advantages, IBC has been included as a third physical layer in the IEEE 802.15.6 standard for wireless body area networks (WBANs) designated as Human Body Communication (HBC). Further research is needed to

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Tawfeeq, Nada N., Mehdi J. Marie, and Khalaf S. Gaeid. "Computer control of teaching enhancement by communication networked." Indonesian Journal of Electrical Engineering and Computer Science 18, no. 2 (2020): 736. http://dx.doi.org/10.11591/ijeecs.v18.i2.pp736-744.

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<span>Enhancement of teaching and education is crucial. This enhancement is rapidly improved through combining communication and technology resulting in various benefits (particularly the wireless Technologies (WT)). Such combination encourages lecturers to meet the worldwide demand for changing traditional teaching techniques to technology-based methods. Wireless system networks (WSNs) represent systems of smart devices that are<em></em>linked wirelessly. In addition, these devices are characterized by having a bandwidth of bounded communication, abilities of sensing and com

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Choudhary, Amit, M. Nizamuddin, Manish Zadoo, and Vibhav Kumar Sachan. "Multi-objective optimization framework complying IEEE 802.15.6 communication standards for wireless body area networks." Wireless Networks 26, no. 6 (2020): 4339–62. http://dx.doi.org/10.1007/s11276-020-02342-y.

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Potter, Jodi A., and Susan Cohen. "Information sharing strategies in a standards contest: The case of 2G wireless communication." Journal of High Technology Management Research 21, no. 2 (2010): 108–21. http://dx.doi.org/10.1016/j.hitech.2010.05.005.

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Arena, Fabio, Giovanni Pau, and Alessandro Severino. "A Review on IEEE 802.11p for Intelligent Transportation Systems." Journal of Sensor and Actuator Networks 9, no. 2 (2020): 22. http://dx.doi.org/10.3390/jsan9020022.

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Road safety is an active area of research for the automotive industry, and certainly one of ongoing interest to governments around the world. The intelligent transportation system (ITS) is one of several viable solutions with which to improve road safety, where the communication medium (e.g., among vehicles and between vehicles and the other components in an ITS environment, such as roadside infrastructure) is typically wireless. A typical communication standard adopted by car manufacturers is IEEE 802.11p for communications. Thus, this paper presents an overview of IEEE 802.11p, with a partic

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Gueorguiev, Nikolay, Aleksandar Kolarov, and Ilian Iliev. "Module for wireless communication in aerospace vehicles." Aerospace Research in Bulgaria 32 (2020): 160–74. http://dx.doi.org/10.3897/arb.v32.e14.

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The increase in air traffic and space flights, the rising cargo volumes and passenger numbers all set complex research and applied scientific tasks and therefore pose more complex requirements for obtaining up-to-date information on the system parameters and on the environment in which they function. After the advent of IoT platforms, their use in all areas of technology has been growing rapidly, as for instance in data collection and processing systems that are fully applicable to aviation needs. One of the major problems in the building of new systems or upgrading existing ones in line with

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Ramanatt, Peter Reji, K. Natarajan, and K. R. Shobha. "Challenges in implementing a wireless avionics network." Aircraft Engineering and Aerospace Technology 92, no. 3 (2020): 482–94. http://dx.doi.org/10.1108/aeat-07-2019-0144.

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Purpose Aircraft manufacturers for a long time have been looking to reduce the weight of on board equipment to enhance performance both from commercial aspect and from military aspect. The existing wired technology, using cables to connect different on board line replaceable unit apart from increasing the weight also increases the complexity related to electromagnetic interference, installation and maintenance. With continuous technology upgradation in the wireless domain, aviation industry is in the process of using wireless technology for intra-aircraft communication. Wireless technology can

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Ullah, Sadiq, Shaheen Ahmad, Burhan A. Khan, Farooq A. Tahir, and James A. Flint. "An hp-shape hexa-band antenna for multi-standard wireless communication systems." Wireless Networks 25, no. 3 (2018): 1361–69. http://dx.doi.org/10.1007/s11276-018-1760-x.

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Seo, DongBack. "The Significance of Government's Role in Technology Standardization." International Journal of IT Standards and Standardization Research 8, no. 1 (2010): 63–74. http://dx.doi.org/10.4018/jitsr.2010120705.

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For first generation (1G) wireless communications technology standards, the Japanese government’s early decision provided an opportunity for its national manufacturers to be first movers in the global market, while the late development of wireless communications in Korea made the Korean market dependent on foreign manufacturers by adopting the U.S. standard (AMPS). Moving toward the 2G wireless technology market, both countries decided to develop standards instead of adopting a technology from outside their regions. Japan developed its own standard, PDC, while Korea developed CDMA systems with

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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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Wang, Hongchao, Jian Ma, Dong Yang, and Mikael Gidlund. "Efficient Resource Scheduling for Multipath Retransmission over Industrial WSAN Systems." Sensors 19, no. 18 (2019): 3927. http://dx.doi.org/10.3390/s19183927.

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With recent adoption of Wireless Sensor-Actuator Networks (WSANs) in industrial automation, wireless control systems have emerged as a frontier of industrial networks. Hence, it has been shown that existing standards and researches concentrate on the reliability and real-time performance of WSANs. The multipath retransmission scheme with multiple channels is a key approach to guarantee the deterministic wireless communication. However, the efficiency of resource scheduling is seldom considered in applications with diverse data sampling rates. In this paper, we propose an efficient resources sc

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Wang, Jia Feng, Xiang Ning Fan, Li Tang, and Xiao Yang Shi. "A Programmable Frequency Divider for Multi-Standard Wireless Receivers." Applied Mechanics and Materials 577 (July 2014): 644–47. http://dx.doi.org/10.4028/www.scientific.net/amm.577.644.

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A programmable frequency divider based on divider-by-2/3 structure in fractional-N frequency synthesizer is presented, including a high speed divider-by-2 providing orthogonal signals for mixer. This paper firstly introduces two structures of programmable frequency divider, and analyzes the rationality of the circuit structure. Then it presents a method to determine the parameters of CMOS transistors in SCL structure. Finally, each component of the circuit is analyzed. The simulation results show that the programmable divider can work at 1 ~ 8 GHz and generates programmable division ratio from

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Yonis, A. Z. "Performance analysis of IEEE 802.11ac based WLAN in wireless communication systems." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 2 (2019): 1131. http://dx.doi.org/10.11591/ijece.v9i2.pp1131-1136.

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<p><span lang="EN-US">IEEE 802.11ac based wireless local area network (WLAN) is emerging WiFi standard at 5 GHz, it is new gigabit-per-second standard providing premium services. IEEE 802.11ac accomplishes its crude speed increment by pushing on three distinct measurements firstly is more channel holding, expanded from a maximum of 80 MHz up to 160 MHz modes. Secondly, the denser modulation, now using 256-QAM, it has the ability to increase the data rates up to 7 Gbps using an 8×8 multiple input multiple output (MIMO). Finally, it provides high resolution for both narrow and medium

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Ekşim, Ali. "Performance of Multiple-Antennas in ISO 18000-7 Standard with Using Limited Feedback Schemes." Journal of Communications Software and Systems 9, no. 1 (2013): 97. http://dx.doi.org/10.24138/jcomss.v9i1.161.

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Radio Frequency Identification (RFID) is a pervasive wireless technology to automatically identify, track, and locate objects or people. RFID technology falls into three categories with respect to tags' energy source: passive, semi-passive and active. Active RFID tags are preferred in many applications for their advantages: Visibility, security, quality and high distance communication. Active RFID systems present a couple of challenges that are vital and should be overcome before enjoying their benefits. One of the most important new challenges is energy-efficient data gathering. ISO/IEC 18000

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Ali, I., U. Wasenmüller, and N. Wehn. "A high throughput architecture for a low complexity soft-output demapping algorithm." Advances in Radio Science 13 (November 3, 2015): 73–80. http://dx.doi.org/10.5194/ars-13-73-2015.

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Abstract. Iterative channel decoders such as Turbo-Code and LDPC decoders show exceptional performance and therefore they are a part of many wireless communication receivers nowadays. These decoders require a soft input, i.e., the logarithmic likelihood ratio (LLR) of the received bits with a typical quantization of 4 to 6 bits. For computing the LLR values from a received complex symbol, a soft demapper is employed in the receiver. The implementation cost of traditional soft-output demapping methods is relatively large in high order modulation systems, and therefore low complexity demapping a

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Thi Bao Nguyen, Tram, Tuy Nguyen Tan, and Hanho Lee. "Low-Complexity High-Throughput QC-LDPC Decoder for 5G New Radio Wireless Communication." Electronics 10, no. 4 (2021): 516. http://dx.doi.org/10.3390/electronics10040516.

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This paper presents a pipelined layered quasi-cyclic low-density parity-check (QC-LDPC) decoder architecture targeting low-complexity, high-throughput, and efficient use of hardware resources compliant with the specifications of 5G new radio (NR) wireless communication standard. First, a combined min-sum (CMS) decoding algorithm, which is a combination of the offset min-sum and the original min-sum algorithm, is proposed. Then, a low-complexity and high-throughput pipelined layered QC-LDPC decoder architecture for enhanced mobile broadband specifications in 5G NR wireless standards based on CM

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Muramatsu, Fumiya, Kentaro Nishimori, Ryotaro Taniguchi, Takefumi Hiraguri, and Tsutomu Mitsui. "Evaluation of Multi-Beam Massive MIMO Considering MAC Layer Using IEEE802.11ac and FDD-LTE." Electronics 8, no. 2 (2019): 225. http://dx.doi.org/10.3390/electronics8020225.

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Massive multiple-input multiple-output (MIMO) transmission has attracted attention as a key technology for use in fifth-generation mobile communication systems. Multi-beam massive MIMO systems that apply beam selection in analog components and blind algorithms in digital components to eliminate the requirement for channel state information have been proposed as a method for reducing overhead. In this study, we developed an adaptive modulation scheme for implementing multi-beam massive MIMO and used computer simulation to compare it with digital and analog–digital hybrid beam-forming methods. T

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Dong, Jian, Xiaping Yu, and Guoqiang Hu. "Design of a Compact Quad-Band Slot Antenna for Integrated Mobile Devices." International Journal of Antennas and Propagation 2016 (2016): 1–9. http://dx.doi.org/10.1155/2016/3717681.

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In order to incorporate different communication standards into a single device, a compact quad-band slot antenna is proposed in this paper. The proposed antenna is composed of a dielectric substrate, T-shaped microstrip patch with a circle slot and an inverted L-slot, and a comb-shaped ground on the back of the substrate. By adopting these structures, it can produce four different bands, while maintaining a small size and a simple structure. Furthermore, a prototype of the quad-band antenna is designed and fabricated. The simulated and measured results show that the proposed antenna can operat

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Goulart, Ana E., and Abhijeet Sahu. "Cellular IoT for Mobile Autonomous Reporting in the Smart Grid." International Journal of Interdisciplinary Telecommunications and Networking 8, no. 3 (2016): 50–65. http://dx.doi.org/10.4018/ijitn.2016070104.

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Wireless access technologies are being embedded in utility meters, health devices, public safety systems, among others. These devices have low processing power and communicate at low data rates. New communication standards are being developed to support these machine-type communications (MTC), such as Cellular Internet of Things (CIoT), which is being developed by the third generation partnership project (3GPP). CIoT introduces cooperative ultra-narrow band (C-UNB) communications. It supports ad-hoc uplink transmissions, delay-tolerant downlink transmissions, and a simple authentication scheme

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Kocks, Christian, Alexander Viessmann, Peter Jung, Lei Chen, Qiu Jing, and Rose Qingyang Hu. "On Spectrum Sensing for TV White Space in China." Journal of Computer Networks and Communications 2012 (2012): 1–8. http://dx.doi.org/10.1155/2012/837495.

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In the field of wireless communications the idea of cognitive radio is of utmost interest. Due to its advantageous propagation properties, the TV white space can be considered to become the first commercial application of cognitive radio. It allows the usage of secondary communication systems at non-occupied frequency bands. Within this paper, spectrum sensing algorithms are introduced for the three predominant Chinese TV standards DTMB, CMMB, and PAL-D/K. A prototype platform is presented and its underlying architecture based on a combination of DSP and FPGA is illustrated including the setup

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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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Isasi, Lucia, Begoña Molinete, Jesus Murgoitio, and Dionisio del Pozo. "CyberCars-2 Cooperative Cybernetic Transport System Architecture." Journal of Robotics and Mechatronics 22, no. 6 (2010): 685–93. http://dx.doi.org/10.20965/jrm.2010.p0685.

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Research on Intelligent Cooperative Systems (ICS) based on wireless vehicular communication to improve automotive safety and traffic efficiency is being promoted through initiatives such as the Vehicle Safety Communications Consortium (VSCC) and Vehicle-Infrastructure Integration (VII) in the US, SMARTWAY and Vehicle Information and Communication System (VICS) in Japan, and European R&D activities within the framework of i2010: Intelligent Car Initiative - e.g., PReVENT, CVIS, and SAFESPOT. Related standardization activities include Continuous Air Interface for Long and Medium Range (CALM)

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Cao, Pengcheng, Weiwei Liu, Guangjie Liu, Xiaopeng Ji, Jiangtao Zhai, and Yuewei Dai. "A Wireless Covert Channel Based on Constellation Shaping Modulation." Security and Communication Networks 2018 (2018): 1–15. http://dx.doi.org/10.1155/2018/1214681.

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Wireless covert channel is an emerging covert communication technique which conceals the very existence of secret information in wireless signal including GSM, CDMA, and LTE. The secret message bits are always modulated into artificial noise superposed with cover signal, which is then demodulated with the shared codebook at the receiver. In this paper, we first extend the traditional KS test and regularity test in covert timing channel detection into wireless covert channel, which can be used to reveal the very existence of secret data in wireless covert channel from the aspect of multiorder s

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