Performance Analysis of Clustering Car-Following V2X System With Wireless Power Transfer and Massive Connections

Do, Dinh‐Thuan; Nguyen, Minh-Sang Van; Vozňák, Miroslav; Kwasinski, Alexis; Souza, José Neuman de

doi:10.1109/jiot.2021.3070744

Cited by 42 publications

(19 citation statements)

References 44 publications

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“…This increases the number of collisions and hence reduces the PDR values. In addition, og 16 shows that the NSSC's PDR is a little high than our EMD-IoV's PDR. This is mainly due to the fact that NSSC scheme is based on V2V one-hop communications which highly improves the PDR values, as compared to our scheme where both one-hop and multi-hop communications are performed.…”

Section: Packet Delivery Ratio (Pdr)mentioning

confidence: 68%

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Towards Optimal Dissemination of Emergency Messages in Internet of Vehicles: A Dynamic Clustering-Based Approach

Azzaoui

Korichi

Brik³

et al. 2021

Electronics

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In this paper, we target dissemination issues of emergency messages in a highly dynamic Internet of Vehicles (IoV) network. IoV is emerging as a new class of vehicular networks to optimize road safety as well as users’ comfort. In such a context, forwarding emergency messages through vehicle-to-vehicle communications (V2V) plays a vital role in enabling road safety-related applications. For instance, when an accident occurs, forwarding such information in real time will help to avoid other accidents in addition to avoiding congestion of network traffic. Thus, dissemination of emergency information is a major concern. However, on the one hand, vehicle density has increased in the last decade which may lead to several issues including message collisions, broadcast storm, and the problem of hidden nodes. On the other hand, high mobility of vehicles and hence dynamic changes of network topology result in failure of dissemination of emergency packets. To overcome these problems, we propose a new dissemination scheme of emergency packets by vehicles equipped with both DSRC and cellular LTE wireless communication capabilities. Our scheme is based on a dynamic clustering strategy, which includes a new cluster head selection algorithm to deal with the broadcast storm problem. Furthermore, our selection algorithm enables not only the election of the most stable vehicles as cluster heads, and hence their exploitation in forwarding the emergency information, but also the avoidance of packet collisions. We simulated our scheme in an urban environment and compared it with other data dissemination schemes. Obtained results show the efficiency of our scheme in minimizing collision and broadcast storm problems, while improving latency, packet delivery ratio and data throughput, as compared to other schemes.

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Section: Packet Delivery Ratio (Pdr)mentioning

confidence: 68%

“…To overcome these issues, and to reduce the complexity of vehicle-to-everything (V2X) systems [16], one possible solution is to dynamically divide vehicles into clusters based on common attributes such as location, direction, speed, etc. [17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Towards Optimal Dissemination of Emergency Messages in Internet of Vehicles: A Dynamic Clustering-Based Approach

Azzaoui

Korichi

Brik³

et al. 2021

Electronics

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“…The massive number of required elements might make RIS undesirable and unpractical to manufacture and deploy, however, this is not the case as noted in [33], that RIS elements are spread out over the planar two-dimensional surface and are sub-wavelength in size, hence more than 1000 elements can be equipped into a 1 × 1m surface. Moreover, based on the measurements identified in [26], [27], practical RIS devices require good resource allocation schemes to effectively enhance the energy efficiency of SWIPT systems.…”

Section: ) the Benefits Of Ris In Swipt Networkmentioning

confidence: 99%

“…However, in practice, depending on the angle of incidence, polarization of the electromagnetic wave, and the reflection angle, results in RIS reflecting incident signals from different directions with different gains [25]. Therefore, most of paper assumed that the RIS-aided SWIPT system follows a linear energy harvesting model as reported in [26], [27].…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Intelligent Surface Aided Multi-User Communications: State-of-the-Art Techniques and Open Issues

Munochiveyi

Pogaku

Do³

et al. 2021

IEEE Access

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Reconfigurable intelligent surface (RIS)-aided communication is considered as an exciting research topic in academic and industrial communities since it provides an emerging affordable solution to achieve high quality and secure next-generation wireless systems. Especially, the deployment of RIS in multi-user wireless networks promises to reduce system hardware costs, signal processing complexity, as well as energy consumption due to small size, lightweight and ability to actively shape the wireless propagation environment. Further, by realizing a cost-effective radio environment, RIS-aided communication can be implemented to be an appealing technology for future integration with other emerging wireless applications and communication systems. Despite the positive appeal, RISs face new challenges that hinder integrating efficiently into wireless networks, such as network secrecy performance and system sum-rates, as well as achieving efficient deployment design in highly dynamic and time-varying wireless environments. To this end, we overview recent state-of-the-art techniques to address the above issues faced in the integration of RISs with various emerging multi-user communication techniques, such as Unmanned Aerial Vehicles (UAVs), Non-Orthogonal Multiple Access (NOMA), Millimeter Wave (mmWave) and Terahertz (THz) communications, Physical Layer Security (PLS), massive antennas, and Simultaneous Wireless Information and Power Transfer (SWIPT). Finally, we highlight promising future research directions of RIS-aided communication in Cell-Free Massive Multiple-Input-Multiple-Output (MIMO) systems, Rate-Splitting Multiple Access (RSMA), Light Fidelity (LiFi), and Cognitive Radio (CR) systems.

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“…To maximize the difference in channel gains of paired users, a non-orthogonal multiple access algorithm based on dynamic clusters is proposed [ 19 ], in which the sum-throughput maximization problem is formulated to optimize user clustering and power allocations in NOMA clusters. The work in [ 20 ] presented the throughput performance of NOMA vehicle-to-everything (V2X) with the fixed power allocation factors to further evaluate the performance of a group containing two vehicles. To maximize the sum-capacity and total energy efficiency for small-cell network, the authors of [ 21 ] proposed a joint NOMA-enabled optimization framework by utilizing the concepts of the multi-objective problem.…”

Section: Related Workmentioning

confidence: 99%

Dynamic Divide Grouping Non-Orthogonal Multiple Access in Terrestrial-Satellite Integrated Network

Yan¹,

Zhang

et al. 2021

Sensors

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Non-orthogonal multiple access (NOMA) has been extensively studied to improve the performance of the Terrestrial-Satellite Integrated Network (TSIN) on account of the shortage of frequency band resources. In this paper, the terrestrial network and satellite network synergistically provide complete coverage for ground users, and based on the architecture, we first formulate a constrained optimization problem to maximize the sum rate of the TSIN under the limited spectrum resources. As the terrestrial networks and the satellite network will cause interference to each other, we first investigate the capacity performance of the terrestrial networks and the satellite networks separately, in which the optimal power control factor expression is derived. Then, by constructing the relationship model between user elevation angle, beam angle and distance, we develop a dynamic group pairing schemes to ensure the effective pairing of NOMA users. Based on the user pairing, to obtain the optimal resource allocation, a joint optimization algorithm of power allocation, beam channel and base station channel resource is proposed. Finally, simulation results are provided to evaluate the user paring scheme as well as the total system performance, in comparison with the existing works.

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Performance Analysis of Clustering Car-Following V2X System With Wireless Power Transfer and Massive Connections

Cited by 42 publications

References 44 publications

Towards Optimal Dissemination of Emergency Messages in Internet of Vehicles: A Dynamic Clustering-Based Approach

Towards Optimal Dissemination of Emergency Messages in Internet of Vehicles: A Dynamic Clustering-Based Approach

Reconfigurable Intelligent Surface Aided Multi-User Communications: State-of-the-Art Techniques and Open Issues

Dynamic Divide Grouping Non-Orthogonal Multiple Access in Terrestrial-Satellite Integrated Network

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