C-V2X无线资源管理算法研究

doi:10.19678/j.issn.1000-3428.0056940

计算机工程 ›› 2021, Vol. 47 ›› Issue (2): 212-218. doi: 10.19678/j.issn.1000-3428.0056940

C-V2X无线资源管理算法研究

林峰¹, 李传伟², 段建岚², 蒋建春³, 付仕明⁴

1. 重庆邮电大学电子信息与网络工程研究院, 重庆 400065;
2. 重庆邮电大学通信与信息工程学院, 重庆 400065;
3. 重庆邮电大学自动化学院, 重庆 400065;
4. 重庆第二师范学院数学与信息工程学院, 重庆 400065

收稿日期:2019-12-17 修回日期:2020-03-11 出版日期:2021-02-15 发布日期:2021-01-29
作者简介:林峰(1978-),男,高级工程师、硕士,主研方向为智能终端与系统;李传伟、段建岚,硕士研究生;蒋建春,教授、博士;付仕明,高级工程师、硕士。
基金资助:
国家科技重大专项“5G产品研发规模实验”（2018ZX03001023-006）；重庆市教育委员会科学技术研究项目（KJQN201801611）。

Research on C-V2X Wireless Resource Management Algorithm

LIN Feng¹, LI Chuanwei², DUAN Jianlan², JIANG Jianchun³, FU Shiming⁴

1. Institute of Electronic Information and Network Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
2. School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
3. School of Automation, Chongqing University of Posts and Telecommunications, Chongqing 400065, China;
4. School of Mathematics and Information Engineering, Chongqing University of Education, Chongqing 400065, China

Received:2019-12-17 Revised:2020-03-11 Online:2021-02-15 Published:2021-01-29

摘要/Abstract

摘要： 在蜂窝车联网（C-V2X）的underlay模式下，蜂窝用户（C-UEs）与车载用户（V-UEs）共享上行频谱。为解决C-V2X中的同频干扰问题，并确定不同数据包优先级（PPPP）用户的传输优先度，在保障V-UEs与C-UEs通信可靠性的同时，以最大化所有用户的信息值为目标，提出一种新的无线资源管理（RRM）算法。通过引入子用户的概念将RRM问题转换为功率分配问题与频率资源选择问题，在功率分配结果的基础上采用启发式算法实现低复杂度的频率资源选择，并对频率选择结果进行再分配得到最终发射功率。仿真结果表明，该算法相比正交分配算法能够有效提升所有用户的信息值，并保障系统可靠性。

关键词: 蜂窝车联网, 传输优先度, 信息值, 功率控制, 频率资源分配

Abstract: Under the Cellular Vehicle-to-everything (C-V2X) underlay mode,Cellular Users (C-UEs) and Vehicular Users (V-UEs) share the uplink spectrum and cause complex co-channel interference.To solve the problem and determine the transmission priority of users with different ProSe Per-Packet Priority(PPPP),this paper proposes a new Radio Resource Management (RRM) algorithm which ensures the communication reliability of V-UEs and C-UEs and maximizes the information value for all users.The algorithm introduces the concept of subuser to decompose the RRM problem into two sub-problems,power allocation and frequency resource selection.Based on the power allocation results,the heuristic algorithm is used to implement frequency resource selection with low complexity,and the frequency selection result is reallocated to obtain the final transmit power.Simulation results show that compared with the orthogonal allocation algorithm,the proposed algorithm can effectively improve the information value of all users and ensure system reliability.

Key words: Cellular Vehicle-to-everything (C-V2X), transmission priority, information value, power control, frequency resource allocation

中图分类号:

TN929.53

林峰, 李传伟, 段建岚, 蒋建春, 付仕明. C-V2X无线资源管理算法研究[J]. 计算机工程, 2021, 47(2): 212-218.

LIN Feng, LI Chuanwei, DUAN Jianlan, JIANG Jianchun, FU Shiming. Research on C-V2X Wireless Resource Management Algorithm[J]. Computer Engineering, 2021, 47(2): 212-218.

https://www.ecice06.com/CN/Y2021/V47/I2/212

图/表 8

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