MCS Adaptation within the Cellular V2X Sidelink

被引：5

作者：

Burbano-Abril, Andres ^{[1
]}

McCarthy, Brian ^{[2
]}

Lopez-Guerrero, Miguel ^{[3
]}

Rangel, Victor ^{[1
]}

O'Driscoll, Aisling ^{[2
]}

机构：

[1] Univ Nacl Autonoma Mexico, Sch Engn, Mexico City, DF, Mexico

[2] Univ Coll Cork, Sch Comp Sci & Informat Technol, Cork, Ireland

[3] Metropolitan Autonomous Univ Iztapalapa, Dept Elect Engn, Mexico City, DF, Mexico

来源：

2021 IEEE CONFERENCE ON STANDARDS FOR COMMUNICATIONS AND NETWORKING (IEEE CSCN) | 2021年

关键词：

MCS adaptation; C-V2X Mode 4; SB-SPS; 5G;

D O I：

10.1109/CSCN53733.2021.9686168

中图分类号：

TP3 [计算技术、计算机技术];

学科分类号：

0812 ;

摘要：

Adaptation of the Modulation and Coding Scheme (MCS) within the Cellular Vehicle-To-Everything (C-V2X) sidelink has the potential for a wide range of applications including congestion control, support of variable packet sizes and improved support of unicast transmissions. However, the practical implementation of MCS adaptation presents a wide range of implications for the C-V2X radio resources, computation of power levels and the operation of the Sensing-Based Semi-Persistent Scheduling (SB-SPS) mechanism. This paper presents the first study that provides a detailed analysis and an implemented model highlighting the implications of MCS adaptation on the operation of SB-SPS. This provides the foundation for other applications of MCS adaptation within the C-V2X sidelink. To showcase the use of MCS adaptation, a quantitative evaluation of its performance for distributed congestion control is undertaken, while considering different vehicular densities. The results indicate that MCS adaptation can be useful to reduce channel congestion by decreasing resource occupation, but may not improve the overall packet delivery rate unless subchannel occupation is reduced.

引用

页数：7

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