A VLSI Implementation of Angular-Domain Massive MIMO Detection

Mojtaba Mahdavi, Ove Edfors, Viktor Owall, Liang Liu

Forskningsoutput: Kapitel i bok/rapport/Conference proceedingKonferenspaper i proceedingPeer review


This paper presents an angular-domain massive MIMO detector which exploits sparsity in massive MIMO channel along with a reconfigurable systolic array architecture to achieve high area efficiency. The underlying idea is to perform signal detection in the angular domain, where the channel matrix can have much lower dimension due the limited number of dominant angles (of arrival and departure) of the wireless signal. Evaluated using the measured massive MIMO channel, the proposed method results in 40%-70% reduction in processing complexity and memory requirements compared to traditional antenna-domain detection. This complexity reduction enables extensive hardware reuse where all the operations of detection processing are mapped to a condensed reconfigurable systolic array. The angular-domain zero-forcing detector, which supports 128 base station antennas and 16 users is implemented in a 28 nm FD-SOI technology. Synthesis result shows that our design attains a throughput of 510 MSps with an area of 537 kG.

Titel på värdpublikationIEEE International Symposium on Circuits and Systems (ISCAS) 2019 - Proceedings
FörlagIEEE - Institute of Electrical and Electronics Engineers Inc.
Antal sidor5
ISBN (elektroniskt)9781728103976
ISBN (tryckt)978-1-7281-0398-3
StatusPublished - 2019 maj 26
Evenemang2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019 - Sapporo, Japan
Varaktighet: 2019 maj 262019 maj 29


Konferens2019 IEEE International Symposium on Circuits and Systems, ISCAS 2019

Ämnesklassifikation (UKÄ)

  • Kommunikationssystem
  • Annan elektroteknik och elektronik


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