A Directional TDMA Protocol for High Throughput URLLC in mmWave Vehicular Networks

Bahbahani, Mohammed S.; Alsusa, Emad; Hammadi, Ali A.

doi:10.1109/tvt.2022.3219771

Cited by 11 publications

(7 citation statements)

References 34 publications

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“…Another study [ 23 ] investigates the benefits and drawbacks of using beamforming for beaconing in V2V communication. Simulation results show that while beamforming increases collisions, it also enables reaching a higher number of vehicles in the network, leading to more reliable communications.…”

Section: Related Workmentioning

confidence: 99%

Evaluating the Performance of Proposed Switched Beam Antenna Systems in Dynamic V2V Communication Networks

Ahmed,

Tiang,

Mahmud

et al. 2023

Sensors

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This paper develops a novel approach for reliable vehicle-to-vehicle (V2V) communication in various environments. A switched beam antenna is deployed at the transmitting and receiving points, with a beam management system that concentrates the power in each beam using a low-computation algorithm and a potential mathematical model. The algorithm is designed to be flexible for various environments faced by vehicles. Additionally, an anti-failure system is proposed in case the intelligent transportation system (ITS) system fails to retrieve real-time Packet Delivery Ratio (PDR) values related to traffic density. Performance metrics include the time to collision in seconds, the bit error rate (BER), the packet error rate (PER), the average throughput (Mbps), the beam selection probability, and computational complexity factors. The proposed system is compared with traditional systems. Extensive experiments, simulations, and comparisons show that the proposed approach is excellent and reliable for vehicular systems. The proposed study demonstrates an average throughput of 1.7 Mbps, surpassing conventional methods’ typical throughput of 1.35 Mbps. Moreover, the bit error rate (BER) of the proposed study is reduced by a factor of 0.1. Additionally, the proposed framework achieves a beam power efficiency of touching to 100% at computational factor of 34. These metrics indicate that the proposed method is both efficient and sufficiently robust.

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Section: Related Workmentioning

confidence: 99%

Evaluating the Performance of Proposed Switched Beam Antenna Systems in Dynamic V2V Communication Networks

Ahmed,

Tiang,

Mahmud

et al. 2023

Sensors

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“…)sin (11) According to (11), UAV a, which prepares to transmit information to neighboring UAV b, predicts the location of UAV b in the FANET. Then, the main lobe of UAV a points toward UAV b, and UAV a transmits TS1-RTS, as illustrated in Figure 16, to UAV b.…”

Section: Neighbor Discovery With Location Prediction For Fanetmentioning

confidence: 99%

“…However, the UAVs in FANETs usually encounter several challenges, such as limited communication resources, intensive contention from neighboring UAVs, and even external interference, which can hinder meeting network capacity and delay communication requirements. In order to increase network capacity, the usage of multiple channels [7,8] and directional antennas [8][9][10][11] are essential for FANETs. Due to their advantages in terms of high gain and focused beamforming capabilities, directional antennas can cover a larger communication range compared to omnidirectional antennas [12] and are well-suited for jamming environments [13].…”

Section: Introductionmentioning

confidence: 99%

A Multichannel MAC Protocol without Coordination or Prior Information for Directional Flying Ad hoc Networks

Liang,

Zhao,

Zhang

et al. 2023

Drones

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Achieving neighbor discovery for a directional flying ad hoc network (FANET) with multiple channels poses challenges for media access control (MAC) protocol design, as it requires simultaneous main lobe and channel rendezvous while dealing with the high UAV mobility. In order to achieve fast neighbor discovery for initial access without coordination or prior information, we first establish the theoretical supremum for the directional main lobe. Then, to achieve the supremum, we introduce the BR-DA and BR-DA-FANET algorithms to respectively establish the supremum on rendezvous between a pair of UAVs’ main lobes and rendezvous of main lobes for all UAVs in the FANET. To further accelerate the neighbor discovery process, we propose the neighbor discovery with location prediction protocol (ND-LP) and the avoiding communication interruption with location prediction (ACI-LP) protocol. ND-LP enables quick main lobe rendezvous and channel rendezvous, while ACI-LP enables beam tracking and channel rendezvous together with the avoidance of communication interruptions. The simulation results demonstrate that the proposed protocols outperform the state-of-the-art works in terms of neighbor discovery delay.

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“…For instance, the authors in [7] analyzed the negative impact of fast-varying channel state due to the high mobility in vehicular networks, and then developed a twin-timescale radio resource allocation framework to reduce the frequency of instantaneous channel estimation, while minimizing the required transmission latency of all vehicular users. The authors in [8] focused on the research of high throughputoriented transmission design for URLLC in a hybrid mmWave and sub-6GHz vehicular network, and proposed a directional vehicle algorithm for this circumstance. Moreover, the authors in [9] introduced a novel Markov chain model to characterize the end-to-end transmission behaviors of URLLC in vehicular networks, and the corresponding link adaptation protocol was developed to maximize the network throughput while ensuring the latency and reliability constraints.…”

Section: Introductionmentioning

confidence: 99%

VLC-Assisted Safety Message Dissemination in Roadside Infrastructure-Less IoV Systems: Modeling and Analysis

Xie,

Xu,

Zhang

et al. 2024

IEEE Internet Things J.

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Internet-of-vehicles (IoV) is an emerging paradigm with significant potential to improve traffic efficiency and driving safety. Here, we focus on the design of a novel visible light communication (VLC)-assisted scheme to enable driving safetyrelated IoV services that require ultra-reliable and low-latency communications (URLLC). Specifically, the vehicle-to-vehicle (V2V) communication mode is adopted to satisfy the ultra-low latency requirement of URLLC in roadside infrastructure-less IoV systems. In the outdoor V2V-VLC scenarios, the quality of the received optical signal is degraded by path loss, atmospheric turbulence and additive noise. In addition, the short-packet feature of URLLC introduces inevitable data decoding errors and imperfect channel state information (CSI). Against this background, we aim to investigate the reliability performance of URLLC in outdoor V2V-VLC systems, which is described by the average packet loss probability under given user-plane transmission latency. Firstly, we consider the ideal case of a perfect CSI at receiver, and derive an analytical expression of average packet loss probability. Further, a closed-form approximation is provided to simplify the numerical calculation. Next, we extend the theoretical analysis to a practical V2V-VLC system with imperfect CSI at the receiver. Through numerical results, we validate the accuracy of our designed theoretical framework and propose some preliminary ideas to enable driving safety-related IoV services in outdoor V2V-VLC systems.

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A Directional TDMA Protocol for High Throughput URLLC in mmWave Vehicular Networks

Cited by 11 publications

References 34 publications

Evaluating the Performance of Proposed Switched Beam Antenna Systems in Dynamic V2V Communication Networks

Evaluating the Performance of Proposed Switched Beam Antenna Systems in Dynamic V2V Communication Networks

A Multichannel MAC Protocol without Coordination or Prior Information for Directional Flying Ad hoc Networks

VLC-Assisted Safety Message Dissemination in Roadside Infrastructure-Less IoV Systems: Modeling and Analysis

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