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Cooperative Routing for Maximizing Network Performance of Wireless Networks
  • ISSN号：1000-9361
  • 期刊名称：Chinese Journal of Aeronautics
  • 时间：2011.4.4
  • 页码：219-223
  • 分类：TN911.7[电子电信—通信与信息系统;电子电信—信息与通信工程]
  • 作者机构：[1]华中科技大学电子与信息工程系,湖北武汉430074
  • 相关基金：国家自然科学基金项目（批准号：60933012）
  • 相关项目：基于无线网络的应急搜救关键技术研究
作者： Kai Liu, Wansheng Zhang, Li Wang, Feng Liu|
关键词： 信道估计, 稀疏多径信道, 压缩传感, 观测矩阵
中文摘要：

可靠的无线通信通常需要准确地知道下层信道的信息，因此需要进行信道估计，通常是用一个已知的训练波形探测信道以及对信道的输入和输出进行线性处理来估计信道的冲激响应，而许多真实信道（如频率选择性衰落信道）表现为仅有一些相对较少的非零信道系数的稀疏多径信道，常见的估计方法是最小二乘法（LS），此法没有利用稀疏信道本身的低维度特性，因此估计代价较大。本文介绍的基于压缩传感（CS）的稀疏多径信道估计方法，能充分利用稀疏先验信息，较大地缩小所需观测矩阵的规模，用较小的代价获得了较好的估计效果。另外，本文还针对相关的压缩传感观测矩阵，给出了矩阵构造的具体要求，且通过仿真实验进行了验证。

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期刊信息
  • 《中国航空学报：英文版》
  • 中国科技核心期刊
  • 主管单位:中国航空工业第一集团公司
  • 主办单位:中国航空学会
  • 主编：朱自强
  • 地址：北京学院路37号中国航空学报：英文版编辑部
  • 邮编：100083
  • 邮箱：caifei@buaa.edu.cn
  • 电话：010-82317058 82318016
  • 国际标准刊号：ISSN：1000-9361
  • 国内统一刊号：ISSN：11-1732/V
  • 邮发代号:
  • 获奖情况:
  • 国内外数据库收录:
  • 被引量:393