面向OFDM系统的协作网络编码传输策略及资源分配研究

This project focuses on the designing of the combination of OFDM and cooperative network coding to meet the requirement of future wireless communications. We will design network coding-based cooperative transmission strategies and resource allocation schemes for OFDM system towards users' QoS and fairness requirements.Our goal is to seek effective combination pattens of network coding and OFDM to improve spectral efficiency, network resource utilization efficiency and transmission realibility of wireless communication networks. The inovations of this project are as follows: ①the cooperation strategy among the network coding users and the corresponding resource allocation algorithm will be designed to maximum the network resource utilization efficiency while improving the cooperative users' gains;②the resource allocation scheme for multiple two-way relays via multiple relay nodes will be designed to improve network resource utilization while satisfying users fairness requirement; ③the transmission strategy able to support various kinds of transmission modes will be investigated and the corresponding resource allocation algorithm will be designed to improve the network resource utilization efficiency while satisifying users' QoS requirements. The research works within this project have great significance in both theory and practice, which will help to improve spectral efficiency and release the contradiction between the users' incearsing transmission requirements and the limited network resources. Moreover, this project will also give some contributions to the application of network coding in 4G standards.

本课题针对未来无线通信发展需求，定位于研究协作网络编码和OFDM宽带通信技术的联合设计方法，设计面向用户QoS和公平性的OFDM宽带网络编码协作传输策略和资源分配算法，目的在于寻求网络编码与OFDM的有效组合模式，提高无线网络的频谱效率、资源利用率和传输可靠性。本课题的创新点在于：①设计基于网络编码的多用户协作策略和分布式资源优化分配算法，在保证用户效用的同时有效提高系统资源利用效率；②提出多用户、多中继双向对传下的多资源联合优化分配算法，在提高系统资源利用效率的同时保证多对用户之间的传输公平性；③提出支持多种传输模式的网络编码机会式传输策略，设计系统时、频等资源的联合优化分配算法，在提高系统资源效用的同时满足用户的QoS需求。本课题的研究对提升未来宽带通信系统的频谱效率，解决日益增长的用户需求与有限网络资源之间的矛盾有重要的意义和参考价值，有助于推动网络编码在4G标准中的应用。

本课题针对未来无线通信发展需求，定位于研究协作中继、网络编码和OFDM 宽带通信技术的联合设计方法，设计面向用户QoS 和公平性的OFDM 宽带网络协作传输策略和资源分配算法，目的在于寻求中继、网络编码与OFDM 的有效组合模式，提高无线网络的频谱效率、资源利用率和传输可靠性。..项目计划在IEEE 等国际知名期刊杂志和通信领域的重要国际会议上发表SCI/EI 论文8 篇以上，申请专利3 项。.项目实际共计发表学术论文30篇，其中 SCI期刊论文21篇，国际会议论文7篇，申请专利3项。..本课题的研究成果有助于为网络编码与宽带无线技术的融合提供新的方法，对提升未来宽带通信系统的频谱效率，解决日益增长的用户需求与有限网络资源之间的矛盾有一定的理论意义和参考价值。特别是与MIMO技术的融合和与无线能量收集技术的融合迎合了未来5G网络大规模天线和绿色通信的发展的趋势与需求。