摘要: |
本文针对TD-SCDMA系统的MIMO(Multiple-Input Multiple-Output)信道,采用天线选择技术来提高空时分组码(Space-Time Block Coding)的分集性能。其依据是利用TDD系统上、下行信道的互易性,将系统对上行信道的估计直接应用于行链路。仿真结果表明,将天线选择技术与空时分组码(STBC)相结合对系统的误码率性能有较大的改善。 |
关键词: TD-SCDMA系统 发送分集 天线选择 空时分组码 无线结构系统 |
DOI:10.3969/j.issn.1001-893X. |
修订日期:2002-07-18 |
基金项目:国家自然科学基金资助项目(69782007),教育部博士点资助项目 |
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Space-Time Block Coding with Optimal Antenna Selection |
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Abstract: |
Space-time block coding is an attractive technique today. In this paper the authors combine optimal antenna sub-set selection technique with space-time block coding in TD-SCDMA system to boost the performance of transmit diversity because channel is reciprocal. To evaluate the scheme over MIMO channel, the authors provide simulation results which show that considerable improvement in average BER is achieved. |
Key words: TD-SCDMA system,Transmit diversity,Antenna selection,STBC |