基于RSMA的无线光通信中预编码与功率分配研究
Study on Pre-coding and Power Allocation in RSMA-based Wireless Optical Communication
梁艳 1张鹏 1张鹍2
作者信息
- 1. 齐鲁工业大学(山东省科学院)山东省计算中心(国家超级计算济南中心)算力互联网与信息安全教育部重点实验室,济南 250014;山东省计算机网络重点实验室山东省基础科学研究中心(计算机科学),济南 250014
- 2. 国网山东省电力公司电力调度控制中心,济南 250001
- 折叠
摘要
[目的]针对无线光通信(OWC)系统中应用速率分拆接入(RSMA)技术的资源分配问题,提出一种基于线性逼近的联合预编码矩阵和速率分配算法,以提高系统的可靠性和性能.[方法]采用变量转换和线性逼近的方法将非凸分阶函数转化为凸函数.通过联合预编码矩阵和速率分配算法,有效地分配系统资源,提高系统性能.为了求解最优解,采用连续迭代算法进行优化.[结果]仿真结果表明,文章所提出的联合优化方案显著降低了系统中断概率,并具有快速的收敛速率.这意味着所提方案能够在基于 RSMA的 OWC(RSMA-OWC)系统中提供更可靠和高效的通信性能.[结论]文章所提方案为 OWC系统中的RSMA技术提供了有效的资源分配方法,提高了系统的可靠性和性能.进一步的研究应聚焦于RSMA-OWC系统的中断概率问题以及资源分配、预编码设计和应用扩展等方面的挑战.该研究为推动RSMA技术在OWC领域的应用和发展提供了有价值的参考.
Abstract
[Objective]The objective of this study is to investigate the resource allocation problem in Optical Wireless Communica-tion(OWC)systems using Rate Splitting Multiple Access(RSMA)technique.We propose a joint precoding matrix and rate allo-cation algorithm based on linear approximation to enhance the system reliability and performance.[Methods]We employ variable transformation and linear approximation techniques to convert the non-convex fractional functions into convex ones.By using the joint precoding matrix and rate allocation algorithm,system resources can be effectively allocated to improve system performance.The optimization problem is solved using a continuous iterative algorithm to obtain the optimal solution.[Results]Simulation re-sults demonstrate that the proposed joint optimization scheme significantly reduces the system outage probability and exhibits a fast convergence rate.This indicates that the proposed method can provide more reliable and efficient communication performance in the RSMA-OWC system,which is based on rate splitting access.[Conclusion]This study provides an effective resource alloca-tion method for RSMA technology in OWC systems,enhancing system reliability and performance.Further research should focus on the challenge of system outage probability in RSMA-OWC systems,as well as resource allocation,precoding design,and ap-plication scalability.This study offers valuable insights to promote the application and development of RSMA technology in the field of OWC.
关键词
速率分拆接入/无线光通信/资源分配/变量转换/线性逼近Key words
RSMA/OWC/resource allocation/leveraging variable transformation/linear approximation techniques引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据