標題: | Codebook Based Interference Alignment in Uplink Coordinated Multipoint Systems |
作者: | Huang, Chung-Jung Chang, Wei-Che Lee, Ta-Sung 電機工程學系 Department of Electrical and Computer Engineering |
關鍵字: | coordinated multipoint;interference alignment;LTE-A;codebook;K-Best |
公開日期: | 2012 |
摘要: | Interference alignment (IA) in uplink coordinated multipoint (CoMP) has been proved to be able to improve the performance in next generation mobile cellular systems. In this paper, an efficient codebook-based Max-SINR IA aided uplink (UL) CoMP scheme with full cooperation at the receiver is proposed. Compared to conventional IA, codebook-based IA requires less feedback information and maintains the same significant improvement in system capacity. To avoid the exhaustive precoder search in codebook-based IA, the K-Best selection algorithm is adopted to efficiently perform precoder selection. Simulation results demonstrate that the proposed codebook-based IA and K-Best precoder selection algorithm can achieve a significant performance gain especially in severe interference environments. |
URI: | http://hdl.handle.net/11536/21585 |
ISBN: | 978-1-4673-5083-9 |
期刊: | IEEE INTERNATIONAL SYMPOSIUM ON INTELLIGENT SIGNAL PROCESSING AND COMMUNICATIONS SYSTEMS (ISPACS 2012) |
顯示於類別: | 會議論文 |