面向无线网状网的多天线协作通信理论与应用研究

项目名称： 面向无线网状网的多天线协作通信理论与应用研究

项目编号： No.61201230

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电子学与信息系统

项目作者： 钟杰

作者单位： 浙江大学

项目金额： 25万元

中文摘要： 目前，在含多中继节点的无线网状(Mesh)网传输中，特别是在支持中继的功耗敏感无线传感器网络、LTE演进网等场合，无线节点如何充分利用网络资源来实现低功耗、高性能的传输已成为制约无线通信发展的研究难点。而面向无线Mesh网的多天线协作通信系统，采用多天线及Mesh网多中继并发传输协作信号处理，能以较小算法复杂度有效地解决该困难。在理论上，研究基于空间置换广义期望最大化理论的多中继并发传输的联合迭代检测等算法，解决多中继分布式多天线同步、信道估计、传输率最大化等单/多目标信宿优化问题；同时进一步研究高性能、中短码长、立体稀疏图累积重复累积结构的低密度奇偶校验(LDPC)码，以其低复杂度的编译码算法及高编码增益，有效辅助上述联合检测算法的实现。在应用上，在上述理论研究的基础上搭建多天线协作传输的硬件平台，将算法付诸实践。通过该课题的研究，将有效地推动我国现代无线通信理论与应用的发展。

中文关键词： 分布式多天线；联合译码多天线检测；多天线联合参数与信道估计；；

英文摘要： Nowadays, in the transmission of wireless mesh networks including multiple relay nodes, especially in power sensitive relay based wireless sensor networks, LTE evolution networks and so on, wireless nodes need take full advantages of the network resources to implement low power consumption and efficient transmission. Also it has become the one of the key research hot-pots. However, in the multiple antennas cooperative communication systems with wireless mesh networks, the cooperative signal processing by multiple antennas and parallel multiple relays of mesh network, can help solving such key research problems with rather low complexity. In aspect of theories, it will research the algorithms of space alternating generalized expectation maximization, joint iterative detection for transmission in parallel multiple relays and so on, to solve single/multiple objectives optimization of multiple antenna synchronization, channel estimation, maximization of transmission and so on, distributed in multi-relay nodes. Besides, it also will investigate the moderate or short length cubic sparse graph based low-density parity-check (LDPC) codes with accumulate-repeat-accumulate structure of high performance which helps realizing the above joint detection algorithms with rather low complexity. In aspect of applications, it will

英文关键词： Distributed MIMO；Joint code MIMO detection；MIMO joint coeficient and channel estimation；；