Title: Modified stable weighted clustering scheme for secured V2V communications

Authors: Siman Emmanuel; Ismail Fauzi Bin Isnin; Mohd. Murtadha Bin Mohamad

Addresses: Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru, Johor, Malaysia ' Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru, Johor, Malaysia ' Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Johor Bahru, Johor, Malaysia

Abstract: Designing a Medium Access Control (MAC) protocol for vehicular ad hoc networks is challenging due to high node speeds, topology changes, infrastructure limitations, and varying quality-of-service requirements. To address these, we propose the Enhanced Cluster Multiple Access (ECMA) protocol, supporting multiple access methods and using a modified weighted clustering algorithm for Cluster Head (CH) selection, ensuring even vehicle distribution. A Chain Markov model manages smooth transitions between access mechanisms based on node thresholds, maintaining network stability. Evaluation with four weighting factors, including network throughput, end-to-end delay, and Packet Delivery Ratio, showcases the protocol's robustness. It outperforms Stable-Based (SB) and Threshold-Based (TB) techniques in various traffic scenarios with fewer modifications. Surprisingly, cluster stability improves by 52% to 61% with more vehicles and extended transmission range, and compared to EWCA and VeMAC protocols, our method excels in data PDR and end-to-end delay enhancement.

Keywords: cluster-based; IEEE 802.11p; time division multiple access; threshold; stable weighted clustering; vehicular ad hoc network.

DOI: 10.1504/IJVICS.2023.135087

International Journal of Vehicle Information and Communication Systems, 2023 Vol.8 No.4, pp.380 - 397

Received: 15 Sep 2021
Received in revised form: 06 Dec 2021
Accepted: 30 Dec 2021
Published online: 30 Nov 2023 *

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