Singh, Gurinder and Gupta, Dhanushi and Bohara, Vivek Ashok and Srivastava, Anand and Liu, Zilong (2022) Exploring cooperative NOMA assisted hybrid visible light and radio frequency for enhanced vehicular message dissemination at road intersections. Physical Communication, 55. p. 101899. DOI https://doi.org/10.1016/j.phycom.2022.101899
Singh, Gurinder and Gupta, Dhanushi and Bohara, Vivek Ashok and Srivastava, Anand and Liu, Zilong (2022) Exploring cooperative NOMA assisted hybrid visible light and radio frequency for enhanced vehicular message dissemination at road intersections. Physical Communication, 55. p. 101899. DOI https://doi.org/10.1016/j.phycom.2022.101899
Singh, Gurinder and Gupta, Dhanushi and Bohara, Vivek Ashok and Srivastava, Anand and Liu, Zilong (2022) Exploring cooperative NOMA assisted hybrid visible light and radio frequency for enhanced vehicular message dissemination at road intersections. Physical Communication, 55. p. 101899. DOI https://doi.org/10.1016/j.phycom.2022.101899
Abstract
Vehicle-to-everything (V2X) communication aims to achieve significantly improved safety and traffic efficiency, more particularly at road intersection where high percentage of accidents usually occur. The existing vehicular radio frequency (V-RF) based V2X utilizes relaying for improving safety message dissemination at road intersections. For a high traffic density scenario, the V-RF communication with relaying solution may suffer from large latency and low packet delivery rates due to channel congestion. In this paper, we explore cooperative non-orthogonal multiple access (NOMA) communication assisted hybrid vehicular visible light communication (V-VLC) and V-RF communication for improving safety message dissemination and enabling massive connectivity among vehicles for road intersection scenarios. We develop a stochastic geometry based analytical framework to model cooperative NOMA (C-NOMA) transmissions subject to interference imposed by other vehicles on roads. We also examine the impact of vehicles headlights radiation pattern viz. Lambertian and empirical path loss models on statistical characterization of the proposed C-NOMA supported hybrid solution. Our numerical findings reveal that C-NOMA assisted hybrid V-VLC/V-RF system leads to considerable improvement in outage performance and average achievable rate as compared to traditional V-RF solution with relaying. Interestingly, Lambertian model offers a lower outage and higher average achievable rate compared to the empirical model for the proposed hybrid solution. Further, we observe the performance improvement using maximal ratio combining (MRC) considering NOMA transmission for the proposed hybrid solution. The presented framework may serve as an alternative for cooperative intelligent transportation system (C-ITS) to meet diverse application needs for beyond 5G (B5G) V2X networks.
Item Type: | Article |
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Uncontrolled Keywords: | Cooperative non-orthogonal multiple access (NOMA); Stochastic geometry; Vehicular radio frequency (V-RF); Vehicular visible light communication (V-VLC); Maximum ratio combining (MRC) |
Divisions: | Faculty of Science and Health Faculty of Science and Health > Computer Science and Electronic Engineering, School of |
SWORD Depositor: | Unnamed user with email elements@essex.ac.uk |
Depositing User: | Unnamed user with email elements@essex.ac.uk |
Date Deposited: | 20 Jan 2023 15:45 |
Last Modified: | 16 May 2024 21:33 |
URI: | http://repository.essex.ac.uk/id/eprint/34567 |
Available files
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Licence: Creative Commons: Attribution-Noncommercial-No Derivative Works 4.0