中国邮电高校学报(英文) ›› 2007, Vol. 14 ›› Issue (3): 5-9.doi: 1005-8885 (2007) 03-0005-05

• Wireless • 上一篇    下一篇

MIMO-OFDM detection based on Monte Carlo probabilistic data association

杨斌; 龚萍; 李永华; 吴伟陵   

  1. Information Theory and Technology Education and Research Center,
    Beijing University of Posts and Telecommunications, Beijing 100876, China
  • 收稿日期:2006-10-08 修回日期:1900-01-01 出版日期:2007-09-30

MIMO-OFDM detection based on Monte Carlo probabilistic data association

YANG Bin; GONG Ping; LI Yong-hua; WU Wei-ling   

  1. Information Theory and Technology Education and Research Center,
    Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2006-10-08 Revised:1900-01-01 Online:2007-09-30

摘要:

This article proposes a spatial multiplexing and diversity joint transmit structure for multiple input multiple output (MIMO)  orthogonal frequency division multiplexing (OFDM) system. The structure uses space-frequency block coding (SFBC) over all its spatial multiplexing layers to obtain both space diversity and frequency diversity gain. The article derives a monte carlo probabilistic data association (PDA) detector to obtain a better bit error rate (BER) performance when compared to the generic PDA detector. Computer simulation results show that the proposed detector can reduce the inter-symbol interference (ISI) greatly, improve the system performance significantly, and lower the computation complexity to a proper lever.

关键词:

MIMO; OFDM; Monte Carlo; PDA

Abstract:

This article proposes a spatial multiplexing and diversity joint transmit structure for multiple input multiple output (MIMO)  orthogonal frequency division multiplexing (OFDM) system. The structure uses space-frequency block coding (SFBC) over all its spatial multiplexing layers to obtain both space diversity and frequency diversity gain. The article derives a monte carlo probabilistic data association (PDA) detector to obtain a better bit error rate (BER) performance when compared to the generic PDA detector. Computer simulation results show that the proposed detector can reduce the inter-symbol interference (ISI) greatly, improve the system performance significantly, and lower the computation complexity to a proper lever.

Key words:

MIMO; OFDM; Monte Carlo; PDA

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