面向5G移动通信系统的D2D可靠多播通信关键技术研究

项目名称： 面向5G移动通信系统的D2D可靠多播通信关键技术研究

项目编号： No.61501136

项目类型： 青年科学基金项目

立项/批准年度： 2016

项目学科： 无线电电子学、电信技术

项目作者： 吴玮

作者单位： 哈尔滨工业大学

项目金额： 19万元

中文摘要： 为了达到5G移动通信系统高速率、高频谱利用率、短时延、低能耗等目标，终端直通技术（Device-to-Device，D2D）被引入作为5G移动通信系统的支撑和扩展技术。特别是在公共安全、应急通信，校园、展会、演出、办公室等场所的数据分发以及车载网和社交网络信息共享等场景下，利用D2D技术实现可靠的多播通信可进一步降低延时和能耗、减少冗余传输、提高资源利用率和系统吞吐量。本项目将利用稀疏码多址接入技术支持大量接入且上行免调度的特点，提出基于稀疏码多址接入的D2D可靠多播通信机制，以解决D2D可靠多播通信多播簇中上行资源需求高和延迟要求高等问题。此外，本项目还将提出基于模糊聚类和联合博弈的D2D可靠多播通信多播簇划分建立算法及单跳和多跳D2D可靠通信自适应切换算法，从而解决多播簇中各个簇成员节点随机分布信道状况各异而导致的D2D多播通信难以可靠传输的问题。

中文关键词： D2D通信；可靠多播通信；稀疏码多址接入；5G移动通信系统

英文摘要： Device-to-Device (D2D) communication is introduced into 5G mobile communication system as the supporting and extension technology to achieve the goal of high data rate, high spectrum efficiency, low latency, low energy consumption. Especially, in the scenario of public safety, emergency communication, data distribution in the campus, in the exhibition, in the concert or in the office, D2D reliable multicast not only can reduce the latency, the energy consumption and redundant transmission, but also can improve the resource utilization and system throughput. In this project，by taking the advantage of Sparse Code Multiple Access (SCMA) which supports massive connectivity and uplink grant-free multiple access, D2D reliable multicast based on SCMA will be proposed to resolve the problem of high demand of uplink resource and latency in the multicast cluster. In addition, the formation strategy of cluster in D2D reliable multicast based on fuzzy clustering and joint game, and the adaptive switching algorithm of single-hop and multi-hop D2D reliable multicast will be present in order to realize multicast reliably when the cluster members’ location are random and the channel conditions are various.

英文关键词： D2D Communication;Reliable Multicast;Sparse Code Multiple Access;5G Mobile Communication System