STBC块传输系统中的一种新型分集合并算法

王杰令; 刘祖军; 田红心; 杨宏; 易克初

doi:10.3724/SP.J.1146.2009.00828

STBC块传输系统中的一种新型分集合并算法

doi: 10.3724/SP.J.1146.2009.00828

王杰令^{① 刘祖军,},
刘祖军,
田红心,
杨宏,
易克初

基金项目:

国家自然科学基金(60572148)，国家科技重大专项基金(2009ZX03003-001)和高等学校学科创新引智计划(B08038)资助课题

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出版历程
- 收稿日期: 2009-06-03
- 修回日期: 2010-05-13
- 刊出日期: 2010-08-19

A Novel Diversity Algorithm in STBC Block Transmission System

摘要

摘要: 该文在二发一收的空时分组码(STBC)单载波块传输系统中，提出一种空时和多径分集合并接收算法。通过基于STBC的单载波频域均衡(STBC-SC-FDE)算法得到对发送信号的估计，以此和信道状态信息(CSI)分离接收信号中的各多径分量，对各多径分量分别采用STBC合并，最后再将各多径分量的合并输出结果按照最大比(MRC)的方式进行合并，从而实现空时二维RAKE接收。该算法在较低的计算复杂度情况下，可以同时获得发射分集和多径分集，Monte Carlo仿真验证了该算法的性能。
- 无线通信 /
- 空时分组码 /
- 单载波频域均衡 /
- 发射分集 /
- 最大比合并
Abstract: A space-time and multi-path diversity combining algorithm is presented in STBC block transmission system with two transmit antennas and one receive antenna. The primary detection is carried out by STBC-based Single Carrier Frequency Domain Equalizer (STBC-SC-FDE), then the multi-path components in the received signal are separated by the initial solution and channel state information. After all the multi-path components are processed by the STBC combining algorithm, the output branches are combined together using Maximal Ratio Combining (MRC) algorithm in the space-time two dimensional RAKE receiver. The new scheme can achieve transmit and multi-path diversity under low computational complexity, and the performance is evaluated by Monte Carlo simulations.
- Wireless Communication /
- STBC /
- SC-FDE /
- Transmit Diversity /
- Maximal Ratio Combining (MRC)

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