摘要
We investigate the limited feedback precoding for spatial modulation in multiple-input multiple-output systems via using the codebook. To enhance bit error rate, we propose a codebook design which iteratively trains the codebook by two criteria. The first criterion is to partition the training set by assigning the best codeword to each training symbol; the second criterion is to optimize the codewords according to the assigned training symbols. Simulation results show that the proposed codebook design can effectively improve the SM-MIMO systems with small overhead.
| 原文 | English |
|---|---|
| 文章編號 | 7234849 |
| 頁（從 - 到） | 1909-1912 |
| 頁數 | 4 |
| 期刊 | IEEE Communications Letters |
| 卷 | 19 |
| 發行號 | 11 |
| DOIs | |
| 出版狀態 | Published - 1 11月 2015 |