wireless protocols
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2022 ◽  
Vol 25 (3) ◽  
pp. 28-33
Author(s):  
Francesco Restuccia ◽  
Tommaso Melodia

Wireless systems such as the Internet of Things (IoT) are changing the way we interact with the cyber and the physical world. As IoT systems become more and more pervasive, it is imperative to design wireless protocols that can effectively and efficiently support IoT devices and operations. On the other hand, today's IoT wireless systems are based on inflexible designs, which makes them inefficient and prone to a variety of wireless attacks. In this paper, we introduce the new notion of a deep learning-based polymorphic IoT receiver, able to reconfigure its waveform demodulation strategy itself in real time, based on the inferred waveform parameters. Our key innovation is the introduction of a novel embedded deep learning architecture that enables the solution of waveform inference problems, which is then integrated into a generalized hardware/software architecture with radio components and signal processing. Our polymorphic wireless receiver is prototyped on a custom-made software-defined radio platform. We show through extensive over-the-air experiments that the system achieves throughput within 87% of a perfect-knowledge Oracle system, thus demonstrating for the first time that polymorphic receivers are feasible.


Author(s):  
Krishna Patel

Abstract: The strong and healthy wireless network of the vehicular communication is needed to enable the detailed system and semiconductor demand analysis. The report presents the automotive wireless communication such as V2V (Vehicle to Vehicle communication), V2X (Vehicle to Everything communication). It explains the formation and working of these automotive wireless protocols and the technology involved in vehicular communication like On-Board, LTE-V and VANETS. Wireless communications will give driver sixth sense what is going around them to help avoid accidents and improve traffic flow. This report also describes the DSRC (Dedicated Short-Range Communication) and also the involvement of 5G in these vehicular communication network. Besides, the road for a successful presentation of vehicular communication we likewise examined the investigation of potential security threats and the structure of a robust security engineering. The analysis carried in this report is to look at and evaluate the most important frameworks, applications, and its market demand that will recognize the future road infrastructures utilized by vehicles. Moreover, we have introduced future research issues of this technology and its scope for the future generation. The principle of this study is to investigate the running project in vehicular communication and make our road and surrounding safer from traffic and accidents. Keywords: Vehicular communication, V2V, V2X, LTE-V, VANETS, Security system, Applications, Market Demand


2021 ◽  
Vol 2021 ◽  
pp. 1-7 ◽  
Author(s):  
Bingtao Zhang ◽  
Lingyan Meng

Wireless sensor network (WSN) can play an important role during precision agriculture production to promote the growth of the agricultural economy. The application of WSN in agricultural production can achieve precision agriculture. WSN has the biggest challenge of energy efficiency. This paper proposes a model to efficiently utilize the energy of sensor nodes in precision agriculture production. The proposed model provides a comprehensive analysis of the precision agriculture. The model focuses on the characteristics of WSN and expands its application in precision agriculture. In addition, this paper also puts forward some technical prospects to provide a good reference for comprehensively and effectively improving the overall development level of precision agriculture. The paper analyzes the applicability and limitations of the existing sensor networks used for agricultural production technology. The ZigBee and Lora wireless protocols are utilized to have the best power consumption and communication in short distance and long distance. Our proposed model also suggests improvement measures for the shortcomings of existing WSN in the context of energy efficiency to provide an information platform for WSN to play a better role in agricultural production.


2021 ◽  
Vol 2021 ◽  
pp. 1-14
Author(s):  
Lin Wei-Wei ◽  
Zeng Hong-Wei ◽  
Jung Yoon Kim

Ensuring the consistency of protocol implementation and protocol specification is the basic premise of wireless communication. With the application of wireless communication in more and more fields, the wireless communication environment becomes more and more complex, and the fault coverage of wireless protocol conformance testing is also facing more and more challenges. To solve this problem, this paper uses Finite State Machine (FSM) as a formal description tool for wireless protocols and presents a combining test method based on two test methods with complementary characteristics in the test technologies based on structural coverage and state identification. Then, the paper evaluates the effectiveness of the method based on 14 empirical cases. The experimental results show that the fault coverage of each empirical case can be effectively improved to 100% when the average test cost is only increased by 17.99%.


2021 ◽  
Vol 11 (2) ◽  
pp. 42-53
Author(s):  
Alexander Yu Tychkov ◽  
Ekaterina Grosheva ◽  
Alan K. Alimuradov ◽  
Andrey Grachev ◽  
Petr P. Churakov ◽  
...  

The article provides an integrated analysis of practical application of virtual reality (VR) in healthcare. Modern VR products have been created for the diagnosis and treatment of post-traumatic syndrome, Alzheimer's disease, alcohol dependence, phobic disorders, and teenage depression. Information on such products is limited to simple scenes, without adaptation to the user. The article shows a prospect for creating a virtual system with biological feedback. The proposed system is a set of portable and stationary devices for recording physiological signals and immersion into a virtual reality environment, as well as smart nodes for registration, processing, and decision-making to correct the user's mental state. Technologies for wire/wireless transfer of audio-visual and parametric information in virtual reality systems are discussed. The analyses include the features (advantages and disadvantages) of using virtual reality in conditions of optical information transfer, wireless protocols, and wire interfaces that provide user communication with virtual reality system and technical solutions.


Author(s):  
Hatim Guermah ◽  
Bassma Guermah ◽  
Tarik Fissaa ◽  
Hatim Hafiddi ◽  
Mahmoud Nassar

In recent years, rapid advances in the enabling technologies for mobile and ubiquitous computing, software paradigms, embedded sensor technologies, and wide range of wired and wireless protocols have been witnessed. Specifically, context-aware services-oriented applications are emerging as the next computing paradigm in which infrastructure and services are seamlessly available. Context-awareness, being an important ingredient, plays a vital role in enabling such interactive smart environments. More recently, the increasing popularity of ontologies has led to new ontology-based models of context because of their potential to support sophisticated ontology-based reasoning methods. This paper presents an architecture for the development of context-aware services based on ontologies. The authors highlight the context metamodel and discuss about reasoning process. This research also presents the semantic approach for service adaptation in context aware environment.


Author(s):  
R. V Pavan Kumar

The project we are going to take-up is "Contact Less High Speed Data Transfer using Light". The purpose of this device is to provide an air gap between systems in different security classifications while transferring data between them. This enables data sharing without worrying about the network/bluetooth/wireless protocols that have been found to be vulnerable. These devices can be used in line of sight areas. The challenges would be to provide data throughputs of the rate of Mbps as these LEDs or Lasers work only at Kbps speeds and also to preserve the integrity of the data transferred. Light is omni present and hence prevention of interference from other light emitting devices would be another challenge. Though LiFi has been talked about almost about 5 years back, there is no robust system in place to provide such systems in a practical environment.


2021 ◽  
Vol 10 (2) ◽  
pp. 31
Author(s):  
Omar Abdelatty ◽  
Xing Chen ◽  
Abdullah Alghaihab ◽  
David Wentzloff

Energy-efficient wireless connectivity plays an important role in scaling both battery-less and battery-powered Internet-of-Things (IoT) devices. The power consumption in these devices is dominated by the wireless transceivers which limit the battery’s lifetime. Different strategies have been proposed to tackle these issues both in physical and network layers. The ultimate goal is to lower the power consumption without sacrificing other important metrics like latency, transmission range and robust operation under the presence of interference. Joint efforts in designing energy-efficient wireless protocols and low-power radio architectures result in achieving sub-100 μW operation. One technique to lower power is back-channel (BC) communication which allows ultra-low power (ULP) receivers to communicate efficiently with commonly used wireless standards like Bluetooth Low-Energy (BLE) while utilizing the already-deployed infrastructure. In this paper, we present a review of BLE back-channel communication and its forms. Additionally, a comprehensive survey of ULP radio design trends and techniques in both Bluetooth transmitters and receivers is presented.


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