中国邮电高校学报(英文) ›› 2020, Vol. 27 ›› Issue (6): 1-7.doi: 10.19682/j.cnki.1005-8885.2020.0041

• Wireless •    下一篇

Channel estimation for multi-panel millimeter wave MIMO based on joint compressed sensing

刘旭,谢洋   

  1. 江苏省无线通信重点实验室,南京邮电大学
  • 收稿日期:2019-06-14 修回日期:2020-12-08 出版日期:2020-12-31 发布日期:2020-12-31
  • 通讯作者: 刘旭 E-mail:liuxu@njupt.edu.cn
  • 基金资助:
    中国博士后科学基金

Channel estimation for multi-panel millimeter wave MIMO based on joint compressed sensing

  • Received:2019-06-14 Revised:2020-12-08 Online:2020-12-31 Published:2020-12-31
  • Supported by:
    China Post-doctoral Science Foundation

摘要:

Channel state information (CSI) is essential for downlink transmission in millimeter wave( mmWave) multiple input multiple output (MIMO) systems. Multi-panel antenna array is exploited in mmWave MIMO system due to its superior performance. Two channel estimation algorithms are proposed in this paper, named as generalized joint orthogonal matching pursuit (G-JOMP) and optimized joint orthogonal matching pursuit (O-JOMP) for multi-panel mmWave MIMO system based on the compressed sensing (CS) theory. G-JOMP exploits common sparsity structure among channel response between antenna panels of base station ( BS) and users to reduce the computational complexity in channel estimation. O-JOMP algorithm is then developed to further improve the accuracy of channel estimation by optimal panel selection based on the power of the received signal. Simulation results show that the performance of the proposed algorithms is better than that of the conventional orthogonal matching pursuit (OMP) based algorithm in multi-panel mmWave MIMO system.

关键词: channel estimation, multi-panel MIMO, millimeter wave, joint orthogonal matching pursuit, common sparsity

Abstract: Channel state information (CSI) is essential for downlink transmission in millimeter wave( mmWave) multiple input multiple output (MIMO) systems. Multi-panel antenna array is exploited in mmWave MIMO system due to its superior performance. Two channel estimation algorithms are proposed in this paper, named as generalized joint orthogonal matching pursuit (G-JOMP) and optimized joint orthogonal matching pursuit (O-JOMP) for multi-panel mmWave MIMO system based on the compressed sensing (CS) theory. G-JOMP exploits common sparsity structure among channel response between antenna panels of base station ( BS) and users to reduce the computational complexity in channel estimation. O-JOMP algorithm is then developed to further improve the accuracy of channel estimation by optimal panel selection based on the power of the received signal. Simulation results show that the performance of the proposed algorithms is better than that of the conventional orthogonal matching pursuit (OMP) based algorithm in multi-panel mmWave MIMO system.

Key words: channel estimation, multi-panel MIMO, millimeter wave, joint orthogonal matching pursuit, common sparsity

中图分类号: