VLSI architecture of the soft-output sphere decoder for MIMO systems

Zhan Guo, Peter Nilsson

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Sammanfattning

Sphere decoders can approach the performance of maximum-likelihood (ML) decoders for MIMO systems with lower complexity. In this paper, VLSI architecture of the modified K-best Schnorr-Euchner (MKSE) sphere decoder is proposed for soft-output MIMO decoding. The MKSE decoder can achieve near-ML performance with higher decoding throughput and lower computational complexity. The proposed VLSI architecture is implemented for a 4 /spl times/ 4 16-QAM MIMO system in a 0.13-/spl mu/m CMOS technology. The implemented soft-output MKSE chip can achieve a decoding throughput of more than 100 Mb/s with a 0.56 mm/sup 2/ core area and 97 K gates.
Originalspråkengelska
Titel på värdpublikation48th Midwest Symposium on Circuits and Systems, 2005.
Sidor1195-1198
Volym2
DOI
StatusPublished - 2005
Evenemang48th IEEE International Midwest Symposium on Circuits and Systems MWSCAS - Cincinnati, Ohio, USA
Varaktighet: 2005 okt. 72005 okt. 10

Publikationsserier

Namn
Volym2

Konferens

Konferens48th IEEE International Midwest Symposium on Circuits and Systems MWSCAS
Land/TerritoriumUSA
OrtCincinnati, Ohio
Period2005/10/072005/10/10

Ämnesklassifikation (UKÄ)

  • Elektroteknik och elektronik

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