TY - GEN
T1 - The feasibility of NOMA in C-V2X
AU - Situ, Zhenhui
AU - Ho, Ivan Wang Hei
AU - Hou, Yun
AU - Li, Peiya
N1 - Funding Information:
This work was supported in part by the General Research Fund (Project No. 15201118) established under the University Grant Committee (UGC) of the Hong Kong Special Administrative Region (HKSAR), China; and by The Hong Kong Polytechnic University (Projects G-YBR2, G-YBXJ).
Publisher Copyright:
© 2020 IEEE.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020/7
Y1 - 2020/7
N2 - Cellular Vehicle-to-everything (V2X) becomes one of the most significant techniques in the 5G standard. It uses the PC5 sidelink interface to enable direct communications between the vehicle and everything, e.g., neighboring vehicles, the infrastructure, and pedestrians. To facilitate ultra-reliable low-latency communication (URLLC) in high dense vehicular networks, this paper studies the feasibility of non-orthogonal multiple access (NOMA) in C-V2X to improve the spectral efficiency. According to the orthogonal multiple access (OMA) based PHY layer as specified in the PC5 sidelink interface, we propose two NOMA receivers based on two techniques: successive interference cancellation (SIC) and joint decoding (JD). It is demonstrated that the two receivers can be easily implemented on current C-V2X communications with minor modifications. Simulation results show that the two NOMA approaches can reduce the block error rate (BLER) by up to 93.6% as compared with the conventional OMA approach. In general, JD receiver provides better BLER performance at the cost of higher computational complexity as compared to the SIC receiver.
AB - Cellular Vehicle-to-everything (V2X) becomes one of the most significant techniques in the 5G standard. It uses the PC5 sidelink interface to enable direct communications between the vehicle and everything, e.g., neighboring vehicles, the infrastructure, and pedestrians. To facilitate ultra-reliable low-latency communication (URLLC) in high dense vehicular networks, this paper studies the feasibility of non-orthogonal multiple access (NOMA) in C-V2X to improve the spectral efficiency. According to the orthogonal multiple access (OMA) based PHY layer as specified in the PC5 sidelink interface, we propose two NOMA receivers based on two techniques: successive interference cancellation (SIC) and joint decoding (JD). It is demonstrated that the two receivers can be easily implemented on current C-V2X communications with minor modifications. Simulation results show that the two NOMA approaches can reduce the block error rate (BLER) by up to 93.6% as compared with the conventional OMA approach. In general, JD receiver provides better BLER performance at the cost of higher computational complexity as compared to the SIC receiver.
UR - http://www.scopus.com/inward/record.url?scp=85091485700&partnerID=8YFLogxK
U2 - 10.1109/INFOCOMWKSHPS50562.2020.9163009
DO - 10.1109/INFOCOMWKSHPS50562.2020.9163009
M3 - Conference article published in proceeding or book
AN - SCOPUS:85091485700
T3 - IEEE INFOCOM 2020 - IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2020
SP - 562
EP - 567
BT - IEEE INFOCOM 2020 - IEEE Conference on Computer Communications Workshops, INFOCOM WKSHPS 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE INFOCOM Conference on Computer Communications Workshops, INFOCOM WKSHPS 2020
Y2 - 6 July 2020 through 9 July 2020
ER -