基于混合多址的物与物通信资源分配技术研究

项目名称： 基于混合多址的物与物通信资源分配技术研究

项目编号： No.61501056

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： 张宁波

作者单位： 北京邮电大学

项目金额： 21万元

中文摘要： 随着物联网和智能终端的快速发展，物与物(M2M)通信的终端连接数迅猛增长，传统移动通信网络面临着M2M终端海量接入的挑战。为了提高系统的接入容量，本项目从多址接入和资源分配的角度出发，研究系统接入容量、混合多址接入技术和资源分配算法，在有限的时频资源内使终端连接数最大。为此，本项目将首先研究面向M2M通信的正交多址、非正交多址和混合多址方式的系统接入容量,推导容量表达式；然后，研究非正交多址接收机的干扰消除技术和不同接入方式的切换门限，提出混合多址接入方案，提高单位资源的终端接入数量；最后，研究混合多址的接入容量与资源分配、系统负载、复用因子之间的关系，以最大化系统接入容量为设计准则，设计负载预测方案、多址接入资源分配方案和信道资源分配方案。本项目研究将产生新的终端多址接入技术和资源分配算法，不仅为物联网的应用提供理论基础，也为第五代（5G）移动通信技术的发展贡献力。

中文关键词： 物与物通信；资源分配；混合多址接入；接入容量；干扰消除

英文摘要： With the rapid development of Internet of Things (IOT) and smart user equipment (UE), the number of terminals connected to the network grows sharply. The traditional cellular network faces the challenge of massive machine-to-machine (M2M) connections. In order to improve the access capacity, from multiple access and resource allocation points of view, this project will research the capacity of access, hybrid multiple access technology and corresponding resource allocation algorithms. The purpose of this research is to maximize the number of accesses within limited time-frequency resources. To do so, this project will first derive the expression of system capacity for orthogonal multiple access, non-orthogonal multiple access and hybrid multiple access. Secondly, this project will study the interference cancellation technology for non-orthogonal multiple access and research the switching threshold for different types of access. Based on these results, this project will propose a hybrid multiple access scheme to improve the number of accesses in a unit of resource block. Thirdly, this project will study the relationship among the capacity of hybrid multiple access, resource allocation, system load and multiplexing factor. With the principle of maximum capacity, this project will propose the algorithms of load prediction, resource allocation scheme for different type of access modes and resource allocation scheme for different channels. The project will produce new multiple access technology and resource allocation algorithms, and these achievements will contribute not only to the fundamental theoretical of IOT, but also to the development of the fifth generation (5G) of mobile technology.

英文关键词： Machine to Machine Communications;Resource Allocation ;Hybrid Multiple Access;Access Capacity;Interference Cancellation