TY - GEN
T1 - A Compact Soft MMSE detection Scheme for Uplink Coded Massive MIMO Systems
AU - Zhang, Zhi
AU - Zhang, Meixiang
AU - Kim, Sooyoung
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/10
Y1 - 2019/10
N2 - Joint iterative detection and decoding (JIDD) methods with minimum mean-squared-error parallel interference cancellation (MMSE-PIC) are usually used for signal detection in multi-input multi-output (MIMO) systems. However, the computational complexity caused by computation of Gram matrix and matrix inversion is unbearable for massive MIMO systems. In addition, MMSE-PIC also suffers from high complexity in calculating soft bit information (SBI) and post-equalization signal-to-interference-plus-noise ratio (PE-SINR). In this paper, we propose a complexity reduced soft MMSE-PIC detection scheme by approximating the Gram matrix with a derived diagonal matrix. Besides, we also apply an efficient soft symbol estimation method based on a symbol mapping technique to further reduce the computational complexity. The simulation results demonstrate that the proposed method can achieve approximating performance to the conventional method with linear-order computational complexity.
AB - Joint iterative detection and decoding (JIDD) methods with minimum mean-squared-error parallel interference cancellation (MMSE-PIC) are usually used for signal detection in multi-input multi-output (MIMO) systems. However, the computational complexity caused by computation of Gram matrix and matrix inversion is unbearable for massive MIMO systems. In addition, MMSE-PIC also suffers from high complexity in calculating soft bit information (SBI) and post-equalization signal-to-interference-plus-noise ratio (PE-SINR). In this paper, we propose a complexity reduced soft MMSE-PIC detection scheme by approximating the Gram matrix with a derived diagonal matrix. Besides, we also apply an efficient soft symbol estimation method based on a symbol mapping technique to further reduce the computational complexity. The simulation results demonstrate that the proposed method can achieve approximating performance to the conventional method with linear-order computational complexity.
KW - efficient symbol mapping
KW - joint iterative detection and decoding
KW - massive
KW - MMSE-PIC
KW - post-equalization SINR
KW - simple symbol estimation
KW - soft MIMO detection
UR - https://www.scopus.com/pages/publications/85078292641
U2 - 10.1109/ICTC46691.2019.8939871
DO - 10.1109/ICTC46691.2019.8939871
M3 - Conference paper
AN - SCOPUS:85078292641
T3 - ICTC 2019 - 10th International Conference on ICT Convergence: ICT Convergence Leading the Autonomous Future
SP - 295
EP - 299
BT - ICTC 2019 - 10th International Conference on ICT Convergence
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Information and Communication Technology Convergence, ICTC 2019
Y2 - 16 October 2019 through 18 October 2019
ER -