| 摘要: |
| 针对频率选择性衰弱信道下协作通信系统信道估计复杂的问题，提出了一种模拟合并
放大转发超宽带（UWB）协作通信方案。该方案在源节点处对发送符号进行实数分布式空时
编码并附加传输参考，在中继节点处利用传输参考对多径分量进行模拟合并，从而构建了一
种改进型非正交放大转发协作通信系统。仿真结果证明，相对于无协作通信系统，模拟合并
转发协作系统无需信道估计就可获得传输性能的有效提升。 |
| 关键词: 超宽带通信 协作通信 实数分布式空时码 传输参考 非正交
放大转发 |
| DOI： |
|
| 基金项目:福建省自然科学基金资助项目（2009J01286） |
|
| An Ultra-wideband Analog Combination and Forward Cooperative Communication System |
| QIAN Hui,YU Lun,ZHENG Hai-feng |
| (College of Physics and Information Engineering,Fuzhou University,Fuzhou 350108
,China) |
| Abstract: |
| In allusion to the complexity channel estimation of cooperative communication
system over frequency-selective fading channels,a scheme of analog combinatio
n and forward ultra-wideband (UWB) cooperative communication is proposed. The tr
ansmitting symbol is coded by real space-time code and the transmitted reference
is appendded at source node,the multipath components are analog combined by a
pplying the transmitted reference at relay node, then a modified non-ort
hogonal amplify-and-forward cooperative communication system is construed. The s
imulation results show that compared to the non-cooperative communication, the t
ransmission ability of analog combination and forward cooperation system can be
efficiently improved without channel estimation. |
| Key words: ultra-wideband communication cooperative communication real space-time code t
ransmitted reference non-orthogonal amplify-and-forward |
《电讯技术》编辑部 