Selective detection for MIMO-OFDM transmission

Hajime Suzuki*, Iain B. Collings, George Lam, Mark Hedley

*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

We present a novel technique for the detection of spatially multiplexed transmitted symbols in uncoded multiple-input multiple-output orthogonal frequency division multiplexing (MIMO-OFDM) system. The method, termed Selective Detection, observes errors caused by a simple zero-forcing (ZF) on different OFDM sub-carriers, and selectively performs list sphere detection (LSD) on sub-carriers with larger errors. Compared with the full-complexity LSD, the proposed algorithms could significantly reduce the receiver complexity at a small signal-to-noise ratio (SNR) loss. For example, simulation results for a MIMO-OFDM system using four transmitters and four receivers with 16 quadrature amplitude modulation (16-QAM) show that 93% of SNR gain that can be achieved by the use of LSD over ZF can be realised if only 33% of sub-carriers are intelligently selected for LSD.

Original languageEnglish
Title of host publicationThe 2nd International Conference on Wireless Broadband and Ultra Wideband Communications, AusWireless 2007
Place of PublicationPiscataway, NJ
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages1-5
Number of pages5
ISBN (Print)0769528422, 9780769528427
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2nd International Conference on Wireless Broadband and Ultra Wideband Communications, AusWireless 2007 - Sydney, Australia
Duration: 27 Aug 200730 Aug 2007

Other

Other2nd International Conference on Wireless Broadband and Ultra Wideband Communications, AusWireless 2007
CountryAustralia
CitySydney
Period27/08/0730/08/07

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