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

Fingerprint

Orthogonal frequency division multiplexing
Decoding
Block codes
Bit error rate
Maximum likelihood
Degradation
Costs

ASJC Scopus subject areas

  • Artificial Intelligence
  • Computer Networks and Communications
  • Signal Processing

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

Candidate codeword selection scheme with bit flipping for outer code in overloaded MIMO-OFDM system. / Doi, Yoshihito; Sanada, Yukitoshi.

2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. p. 318-323 7024476.

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

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., 7024476, Institute of Electrical and Electronics Engineers Inc., pp. 318-323, 2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014, Kuching, Sarawak, Malaysia, 14/12/1. https://doi.org/10.1109/ISPACS.2014.7024476
Doi Y, Sanada Y. 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. Institute of Electrical and Electronics Engineers Inc. 2014. p. 318-323. 7024476 https://doi.org/10.1109/ISPACS.2014.7024476
Doi, Yoshihito ; Sanada, Yukitoshi. / Candidate codeword selection scheme with bit flipping for outer code in overloaded MIMO-OFDM system. 2014 International Symposium on Intelligent Signal Processing and Communication Systems, ISPACS 2014. Institute of Electrical and Electronics Engineers Inc., 2014. pp. 318-323
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