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PHY layer enhancements for next generation V2X communication

Andy Triwinarko 1, 2 Iyad Dayoub 3, 2 Soumaya Cherkaoui 4 
3 COMNUM - IEMN - COMmunications NUMériques - IEMN
INSA Hauts-De-France - INSA Institut National des Sciences Appliquées Hauts-de-France, IEMN - Institut d’Électronique, de Microélectronique et de Nanotechnologie - UMR 8520
Abstract : IEEE 802.11p is a robust and mature technology for dedicated short-range communication (DSRC) where several field trials have been carried out, and the performance of various vehicle-to-everything (V2X) communication scenarios has been investigated. On the other hand, other IEEE 802.11 or wireless local area network (WLAN) standards have evolved and offered some techniques to improve the 802.11p standard. The new task group IEEE 802.11bd (TGbd) was formed to explore the future roadmap for V2X and is working toward a new standard called next-generation V2X (NGV). This article investigates the performance of physical (PHY) layer amendments to 802.11p, i.e., the use of low-density parity-check (LDPC) and midambles, multi-input multi-output-space time block coding (MIMO-STBC), dual-carrier modulation (DCM), and extended-range mode. We build and simulate our system in several V2V channel environments, using the packet error rate (PER) and throughput as the performance metrics. Our investigations show a significant PER performance improvement of all techniques compared to the legacy 802.11p standard. In terms of throughput, the new PHY layer enhancements also give a better performance, except for the DCM technique that improves the reliability of the V2V communication in low SNR conditions at the expense of reducing the channel capacity in half.
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https://hal-uphf.archives-ouvertes.fr/hal-03382808
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Submitted on : Monday, October 18, 2021 - 12:32:28 PM
Last modification on : Tuesday, July 19, 2022 - 11:47:14 AM

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Andy Triwinarko, Iyad Dayoub, Soumaya Cherkaoui. PHY layer enhancements for next generation V2X communication. Vehicular Communications, Elsevier, 2021, 32, pp.100385. ⟨10.1016/j.vehcom.2021.100385⟩. ⟨hal-03382808⟩

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