One-Bit Successive-Cancellation Soft-Output (OSS) Detector for Uplink MU-MIMO Systems With One-Bit Adcs

被引:24
作者
Cho, Yunseong [1 ]
Hong, Song-Nam [2 ]
机构
[1] Univ Texas Austin, Dept Elect & Comp Engn, Austin, TX 78712 USA
[2] Ajou Univ, Dept Elect & Comp Engn, Suwon 16499, South Korea
关键词
Massive MIMO; multiuser MIMO detection; one-bit analog-to-digital converter (ADC); soft-output decoding; MASSIVE MIMO; WIRELESS;
D O I
10.1109/ACCESS.2019.2901942
中图分类号
TP [自动化技术、计算机技术];
学科分类号
0812 ;
摘要
We study an uplink multiuser multiple-input multiple-output (MU-MIMO) system with one-bit analog-to-digital converters (ADCs) in which one base station (BS) with N-r receive antennas serve K users with a single antenna. For this system, the soft-output (SO) detector was recently proposed where a soft-metric (e.g., a log-likelihood ratio (LLR)) is computed from a hard-decision channel output by introducing a novel distance measure in the binary Hamming space. This makes it possible to be naturally incorporated into the state-of-the-art channel codes (e.g., low-density parity-check code or polar code). In this paper, we further improve the performance of the SO detector by exploiting a priori information (e.g., the previously decoded messages), which is called the one-bit successive-cancellation soft-output (OSS) detector. The key idea of the proposed OSS detector is that each user k's message is decoded sequentially via the associated channel decoder k in ascending order and a refined search-space is constructed using the previously decoded messages (i.e., the enhanced LLRs are generated). We then present a multiple OSS detector by taking into account a more practical scenario where the BS is equipped with multiple channel decoders. In addition, we propose an efficient way to determine a good decoding order by introducing a novel set-distance measure. Finally, simulation results demonstrate that the proposed OSS detector can significantly improve the existing SO detector for the coded MU-MIMO systems with one-bit ADCs.
引用
收藏
页码:27172 / 27182
页数:11
相关论文
共 30 条
[1]   Joint Spatial Division and Multiplexing for mm-Wave Channels [J].
Adhikary, Ansuman ;
Al Safadi, Ebrahim ;
Samimi, Mathew K. ;
Wang, Rui ;
Caire, Giuseppe ;
Rappaport, Theodore S. ;
Molisch, Andreas F. .
IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS, 2014, 32 (06) :1239-1255
[2]  
[Anonymous], 2011, P IEEE ITG WSA FEB
[3]  
[Anonymous], 1998, International Symposium on Signals, Systems and Electronics, DOI DOI 10.1109/ISSSE.1998.738086
[4]   Channel Polarization: A Method for Constructing Capacity-Achieving Codes for Symmetric Binary-Input Memoryless Channels [J].
Arikan, Erdal .
IEEE TRANSACTIONS ON INFORMATION THEORY, 2009, 55 (07) :3051-3073
[5]  
BERROU C, 1993, IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS 93 : TECHNICAL PROGRAM, CONFERENCE RECORD, VOLS 1-3, P1064, DOI 10.1109/ICC.1993.397441
[6]  
Cho Y., 2018, P 2018 CHI C HUMAN F, P1
[7]   Near Maximum-Likelihood Detector and Channel Estimator for Uplink Multiuser Massive MIMO Systems With One-Bit ADCs [J].
Choi, Junil ;
Mo, Jianhua ;
Heath, Robert W., Jr. .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2016, 64 (05) :2005-2018
[8]   Massive MIMO Channel-Aware Decision Fusion [J].
Ciuonzo, Domenico ;
Rossi, Pierluigi Salvo ;
Dey, Subhrakanti .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2015, 63 (03) :604-619
[9]  
Ciuonzo D, 2014, PR IEEE SEN ARRAY, P265, DOI 10.1109/SAM.2014.6882391
[10]   A Weighted Minimum Distance Decoding for Uplink Multiuser MIMO Systems With Low-Resolution ADCs [J].
Hong, Song-Nam ;
Kim, Seonho ;
Lee, Namyoon .
IEEE TRANSACTIONS ON COMMUNICATIONS, 2018, 66 (05) :1912-1924