Probabilistic list sphere decoding for LDPC-coded MIMO-OFDM systems

Sungchung Park, Kwyro Lee, Yuping Zhang, Keshab K Parhi, Jin Lee, Sin Chong Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

A probabilistic list sphere decoding (LSD) is proposed for LDPC-coded MIMO-OFDM systems. By confining the search to channel-adaptively chosen promising candidate groups, our proposed probabilistic LSD evaluates the more promising candidates earlier in the search, while retaining efficient implementation of the depth-first LSD. Simulation results show that, the proposed LSD significantly improves the error performance for constrained throughput, or increases the throughput for a fixed bit error rate. The proposed LSD can be implemented by simply adding special hardware blocks that perform preprocessing and control the tree traversal. The K-best search algorithm enables efficient implementation of the preprocessing.

Original languageEnglish (US)
Title of host publication2006 IEEE International Conference on Acoustics, Speech, and Signal Processing - Proceedings
PagesIII912-III915
StatePublished - 2006
Event2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006 - Toulouse, France
Duration: May 14 2006May 19 2006

Publication series

NameICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume3
ISSN (Print)1520-6149

Other

Other2006 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2006
Country/TerritoryFrance
CityToulouse
Period5/14/065/19/06

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