Candidate codeword selection scheme with bit flipping for outer code in overloaded MIMO-OFDM system

Yoshihito Doi, Yukitoshi Sanada

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

    2 Citations (Scopus)

    Abstract

    This paper presents a candidate codeword selection scheme with bit flipping in two step joint decoding of block coded signals in an overloaded multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) system. In previous literature, the two step joint decoding scheme has been proposed for complexity reduction of maximum likelihood decoding of a block code in the overloaded MIMO system. However, the two step decoding scheme has not been combined with an outer code. The selection of the candidate codewords in the inner block code may not always be able to provide the metric of a binary coded symbol for the outer code. Candidate codewords are then created through bit flipping in the proposed scheme. It is shown that the two step decoding scheme reduces the complexity by about 0.026 for 4 signal streams with the cost of bit error rate degradation within 0.5dB.

    Original languageEnglish
    Title of host publication2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages318-323
    Number of pages6
    ISBN (Electronic)9781479961207
    DOIs
    Publication statusPublished - 2014 Jan 27
    Event2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014 - Kuching, Sarawak, Malaysia
    Duration: 2014 Dec 12014 Dec 4

    Other

    Other2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014
    CountryMalaysia
    CityKuching, Sarawak
    Period14/12/114/12/4

    ASJC Scopus subject areas

    • Artificial Intelligence
    • Computer Networks and Communications
    • Signal Processing

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  • Cite this

    Doi, Y., & Sanada, Y. (2014). Candidate codeword selection scheme with bit flipping for outer code in overloaded MIMO-OFDM system. In 2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014 (pp. 318-323). [7024476] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISPACS.2014.7024476