Chen Y.-TCheng C.-CTsai T.-LSun W.-CUeng Y.-LCHIA-HSIANG YANG2021-09-022021-09-022017https://www.scopus.com/inward/record.uri?eid=2-s2.0-85034108930&doi=10.23919%2fVLSIC.2017.8008528&partnerID=40&md5=22f8c3852f9ac04f88c233bcbaa81c0ehttps://scholars.lib.ntu.edu.tw/handle/123456789/580655This work presents the first integration of a message-passing detector (MPD) and a polar decoder. A soft-output MPD, which is essential to approach the channel capacity, is first proposed. Compared to the state-of-the-art design, the proposed MPD achieves a 6.9x higher throughput with 49% lower energy, despite the soft outputs. The proposed polar decoder achieves a 1.35x higher throughput with comparable energy. The chip delivers a throughput of 7.61Gb/s for massive MIMO systems with up to 128 antennas and 32 users. ? 2017 JSAP.Channel capacity; Decoding; MIMO systems; Throughput; VLSI circuits; Lower energies; Soft output; State of the art; Message passingconference paper10.23919/VLSIC.2017.80085282-s2.0-85034108930