TY - GEN
T1 - A stochastic reservation scheme for aperiodic traffic in NR V2X communication
AU - Yoon, Youngjoon
AU - Kim, Hyogon
N1 - Funding Information:
ACKNOWLEDGEMENTS This work was supported by the National Research Foundation of Korea(NRF) grant funded by the Korea government (MSIT). (No. 2020R1A2C3011888).
Publisher Copyright:
© 2021 IEEE.
PY - 2021
Y1 - 2021
N2 - Third Generation Partnership Project (3GPP) has standardized the Sensing-Based Semi-Persistent Scheduling (SB-SPS) as the radio resource allocation algorithm for 5G New Radio vehicle-to-everything (NR V2X) sidelink communication Mode 2. The algorithm leverages on resource reservation information of neighbor vehicles to reduce the chances of packet collisions. Like in LTE V2X, the SB-SPS scheme in NR V2X also assumes chained reservation that reflects the periodic nature of the traffic. However, such scheme does not work properly when the next packet instant is not fixed. Because NR V2X introduced aperiodic traffic, the limitation can be a performance-limiting factor in NR V2X. Therefore, we propose an enhancement to the SB-SPS algorithm to reflect the stochastic nature of the aperiodic traffic on the resource reservation mechanism. We demonstrate the effectiveness of the proposed enhancement through analysis and simulation, and discuss its cost aspect as well.
AB - Third Generation Partnership Project (3GPP) has standardized the Sensing-Based Semi-Persistent Scheduling (SB-SPS) as the radio resource allocation algorithm for 5G New Radio vehicle-to-everything (NR V2X) sidelink communication Mode 2. The algorithm leverages on resource reservation information of neighbor vehicles to reduce the chances of packet collisions. Like in LTE V2X, the SB-SPS scheme in NR V2X also assumes chained reservation that reflects the periodic nature of the traffic. However, such scheme does not work properly when the next packet instant is not fixed. Because NR V2X introduced aperiodic traffic, the limitation can be a performance-limiting factor in NR V2X. Therefore, we propose an enhancement to the SB-SPS algorithm to reflect the stochastic nature of the aperiodic traffic on the resource reservation mechanism. We demonstrate the effectiveness of the proposed enhancement through analysis and simulation, and discuss its cost aspect as well.
KW - Aperiodic traffic
KW - Cellular V2X
KW - NR Sidelink Mode 2
KW - Resource reservation
KW - Sensing-Based Semi-Persistent Scheduling (SPS)
UR - http://www.scopus.com/inward/record.url?scp=85118813031&partnerID=8YFLogxK
U2 - 10.1109/WCNC49053.2021.9417515
DO - 10.1109/WCNC49053.2021.9417515
M3 - Conference contribution
AN - SCOPUS:85118813031
T3 - IEEE Wireless Communications and Networking Conference, WCNC
BT - 2021 IEEE Wireless Communications and Networking Conference, WCNC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE Wireless Communications and Networking Conference, WCNC 2021
Y2 - 29 March 2021 through 1 April 2021
ER -