以协作中继为核心的无线网络多资源联合分配问题研究

项目名称： 以协作中继为核心的无线网络多资源联合分配问题研究

项目编号： No.61272133

项目类型： 面上项目

立项/批准年度： 2013

项目学科： 自动化技术、计算机技术

项目作者： 徐宏力

作者单位： 中国科学技术大学苏州研究院

项目金额： 80万元

中文摘要： 限制无线网络应用的技术瓶颈是无线传输的效率和性能，而信号衰落是降低无线传输效能的主要因素。近年来，研究者提出了新颖的协作通信技术来克服信号衰落效应，即多个单天线节点通过某种方式来共享彼此的天线，以获得类似于MIMO系统的空间分集与复用增益，提高无线传输效能。由于协作通信要求中继参与传输，因而协作中继是实现该机制的核心要素。国内外已有针对中继分配的研究往往不能满足无线网络资源受限等特性，因此研究协作中继与其他资源的联合分配对提高无线网络性能至关重要。本课题将以无线网络特性为出发点，以降低网络能耗或提高服务质量为优化目标，紧紧围绕协作网络多资源联合分配建模与实现机理这两个科学问题，设计以协作中继为核心的无线网络多资源联合分配算法和机制，使其适用于资源（如能量、带宽等）受限的无线网络环境，满足不同的应用需求，并在相关测试床上进行算法与协议验证，推动协作通信技术在下一代无线网络和移动通信中的应用。

中文关键词： 协作通信；联合资源分配；协作中继；能量有效性；网络吞吐率

英文摘要： Signal fading is a major factor in the decline of wireless transmission efficiency and performance which have become the technical bottleneck for wireless network applications. In recent years, a novel technology, cooperative communication, has been proposed to overcome the affect of signal fading. Under this scheme, several single-antenna nodes share the antennas with each other in an agreed way to obtain the spatial diversity and multiplexing gain which are similar as MIMO system. In this way, wireless transmission efficiency can also be enhanced. As cooperative communication requires the relay node participating into cooperative transmission, cooperative relay becomes the core element inside this mechanism. The previous works on relay assignment often can not meet with the features of wireless networks, such as resource constraints. Thus, it is of vital importance to study the joint allocation of cooperative relay node and other resources so as to improve the performance for wireless networks. Our project aims to minimize the power consumption and improve the quality of service by designing the efficient algorithms and mechanisms of joint resource allocation for wireless networks. These algorithms and protocols are able to adapt in a resource-constrained wireless network and satisfy the application requiremen

英文关键词： Cooperative Communication；Joint Resource Allocation；Cooperative Relay；Energy Efficiency；Network Throughput