TY - JOUR
T1 - Advancements in Vehicular Communication Technologies
T2 - C-V2X and NR-V2X Comparison
AU - Saad, Malik Muhammad
AU - Khan, Muhammad Toaha Raza
AU - Shah, Syed Hassan Ahmed
AU - Kim, Dongkyun
N1 - Publisher Copyright:
© 1979-2012 IEEE.
PY - 2021/8
Y1 - 2021/8
N2 - Cellular vehicle-to-everything (C-V2X) is one of the key enabling vehicular communication technologies endorsed by the vehicular industry, scientists, and researchers. Introduced by the 3GPP, LTE device-to-device in Release 12 evolved into C-V2X with mode 3 and mode 4. In mode 4, semi-persistent -scheduling-based sensing is performed by vehicles to select resources. However, when the density of vehicles increases, the performance of C-V2X mode 4 degrades. To address this challenge, 3GPP Release 16 introduced New Radio (NR) for V2X services, also known as NR-V2X. Modes 1 and 2 along with four additional sub-modes were considered in NR-V2X to achieve high reliability and higher throughput with low latency. This article discusses and evaluates the advancements introduced in NR-V2X by comparative analysis with C-V2X. To compare the performance, an NR-V2X simulator based on a network simulator (ns-3) for sub-6 GHz band is also introduced. In addition, feasible practical solutions to resolve resource selection problems are also discussed.
AB - Cellular vehicle-to-everything (C-V2X) is one of the key enabling vehicular communication technologies endorsed by the vehicular industry, scientists, and researchers. Introduced by the 3GPP, LTE device-to-device in Release 12 evolved into C-V2X with mode 3 and mode 4. In mode 4, semi-persistent -scheduling-based sensing is performed by vehicles to select resources. However, when the density of vehicles increases, the performance of C-V2X mode 4 degrades. To address this challenge, 3GPP Release 16 introduced New Radio (NR) for V2X services, also known as NR-V2X. Modes 1 and 2 along with four additional sub-modes were considered in NR-V2X to achieve high reliability and higher throughput with low latency. This article discusses and evaluates the advancements introduced in NR-V2X by comparative analysis with C-V2X. To compare the performance, an NR-V2X simulator based on a network simulator (ns-3) for sub-6 GHz band is also introduced. In addition, feasible practical solutions to resolve resource selection problems are also discussed.
UR - http://www.scopus.com/inward/record.url?scp=85114805187&partnerID=8YFLogxK
U2 - 10.1109/MCOM.101.2100119
DO - 10.1109/MCOM.101.2100119
M3 - Article
AN - SCOPUS:85114805187
SN - 0163-6804
VL - 59
SP - 107
EP - 113
JO - IEEE Communications Magazine
JF - IEEE Communications Magazine
IS - 8
M1 - 9530506
ER -