Reduced complexity scheme for MIMO receiver with combined ZF-OSIC and ML detection

Sann Maw Maung, Suzuki Hajime, Sasase Iwao

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

1 Citation (Scopus)

Abstract

Wireless system capacity can be increased enormously by using multiple antennas at transmitter and receiver sides in the system. Among them, maximum likelihood (ML) receiver is an optimal receiver, but it is difficult to implement due to high complexity arising from exhaustive searches over all candidate vector symbols. On the other hand, zero forcing ordered successive interference cancellation (ZF-OSIC) receiver can reduce the complexity greatly although its performance is less than ML receiver. Performance of ZF-OSIC receiver is seriously affected by the lower SNR layers. Therefore, in our proposed detection scheme, we will choose the optimal number of transmit antennas in the high SNR transmit layers, to be detected by the ZF-OSIC scheme and the remaining transmit antennas in the low SNR transmit layers will be detected by ML scheme to give the better BER performance for the spatial multiplexing MIMO system. Simulated results show that the proposed scheme gives better system performances than those of the conventional ZF-OSIC scheme not only in complexity but also in BER condition.

Original languageEnglish
Title of host publication2012 IEEE Symposium on Computers and Informatics, ISCI 2012
Pages92-96
Number of pages5
DOIs
Publication statusPublished - 2012 Jul 30
Event2012 IEEE Symposium on Computers and Informatics, ISCI 2012 - Penang, Malaysia
Duration: 2012 Mar 182012 Mar 20

Publication series

Name2012 IEEE Symposium on Computers and Informatics, ISCI 2012

Other

Other2012 IEEE Symposium on Computers and Informatics, ISCI 2012
CountryMalaysia
CityPenang
Period12/3/1812/3/20

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ASJC Scopus subject areas

  • Information Systems

Cite this

Maung, S. M., Hajime, S., & Iwao, S. (2012). Reduced complexity scheme for MIMO receiver with combined ZF-OSIC and ML detection. In 2012 IEEE Symposium on Computers and Informatics, ISCI 2012 (pp. 92-96). [6222673] (2012 IEEE Symposium on Computers and Informatics, ISCI 2012). https://doi.org/10.1109/ISCI.2012.6222673