Multimode precoder design for STBC with limited feedback in MIMO based wireless communication system

[摘要] References(6)Cited-By(3)In this paper, a multimode precoder design for space-time block code (STBC) is investigated, which varies the number of streams depending on the channel condition. We develop a design criterion of minimizing the vector symbol error rate and derive an efficient offline algorithm to generate precoders. Simulation results show that the multimode precoded STBC (MM-STBC) provides substantial performance improvements compared with the single mode precoded orthogonal STBC (SM-STBC) for a fixed data-rate. It also outperforms the multimode precoded multiple-input multiple-output (MM-MIMO) system when feedback rate is very limited.

[学科分类] 电子、光学、磁材料

[关键词] space time block code;multimode precoder;limited feedback;MIMO based wireless communication system