Parallel architecture of list sphere decoders

Yuping Zhang, Keshab K Parhi

Research output: Contribution to journalConference articlepeer-review


Sphere decoding has been used for maximum likelihood (ML) detection of multiple-input-multiple-output (MIMO) communication systems. In order to combine the sphere decoder with the outer channel code decoder, researchers have proposed to include a candidate list in the sphere decoder to provide soft information to the channel code decoder. This algorithm is called list sphere decoder (LSD). With LSD, it takes many cycles to decode a vector. In this paper, the architecture of applying parallel processing technique in LSD is presented, with detailed discussions on the individual building blocks.

Original languageEnglish (US)
Article number4253083
Pages (from-to)2096-2099
Number of pages4
JournalProceedings - IEEE International Symposium on Circuits and Systems
StatePublished - 2007
Event2007 IEEE International Symposium on Circuits and Systems, ISCAS 2007 - New Orleans, LA, United States
Duration: May 27 2007May 30 2007


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