Transmitter noise effect on the performance of a MIMO-OFDM hardware implementation achieving improved coverage

Hajime Suzuki*, Thi Anh Van Tran, Iain B. Collings, Graham Daniels, Mark Hedley

*Corresponding author for this work

Research output: Contribution to journalArticle

75 Citations (Scopus)

Abstract

This paper presents analysis of performance measurements from a MIMO-OFDM IEEE 802.11n hardware implementation at 5.2 GHz using four transmitters and four receivers. Two spatial multiplexing systems are compared; one which uses a zero-forcing (ZF) detector and the other a list sphere detector (LSD). We show that the measured results do not align with standard prediction based on simulation assuming uncorrelated receiver noise. We show that the discrepancy can be explained by the inclusion of transmitter noise into the channel model. This effect is not included in existing MIMO-OFDM channel models. The measured results from our hardware implementation show successful packet transmission at 600 Mb/s with 15 bits/s/Hz spectral efficiency at 73% coverage for ZF and 84% coverage for LSD with an average receiver signal to noise ratio (SNR) of 26 dB.

Original languageEnglish
Article number4586304
Pages (from-to)867-876
Number of pages10
JournalIEEE Journal on Selected Areas in Communications
Volume26
Issue number6
DOIs
Publication statusPublished - Aug 2008
Externally publishedYes

Keywords

  • LDPC
  • LSD
  • MIMO-OFDM
  • SNR estimation
  • ZF

Fingerprint Dive into the research topics of 'Transmitter noise effect on the performance of a MIMO-OFDM hardware implementation achieving improved coverage'. Together they form a unique fingerprint.

Cite this