Reduced complexity MLSD equalizers based on bidirectional DFEs

Jangwoo Park, Youngsun Ha, Wonzoo Chung

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

1 Citation (Scopus)

Abstract

We propose a reduced complexity maximum likelihood sequence detection (MLSD) equalizer for large size constellation signals such as 8-VSB using bidirectional decision feedback equalizers (DFEs). We apply reduced-length two-level Viterbi algorithm to select one of two non-identical symbol estimates produced by a bidirectional DFE. Therefore, the computationally expensive MLSD algorithm is applied sparingly for two-level signals with the effective channel length shorter than the original channel, regardless of the original constellation size of the symbols. Simulations results show that the proposed algorithm outperforms existing combination schemes based on bidirectional DFEs, especially for large size constellation.

Original languageEnglish
Title of host publicationDigest of Technical Papers - IEEE International Conference on Consumer Electronics
Pages437-438
Number of pages2
DOIs
Publication statusPublished - 2011 Mar 28
Event2011 IEEE International Conference on Consumer Electronics, ICCE 2011 - Las Vegas, NV, United States
Duration: 2011 Jan 92011 Jan 12

Other

Other2011 IEEE International Conference on Consumer Electronics, ICCE 2011
CountryUnited States
CityLas Vegas, NV
Period11/1/911/1/12

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Industrial and Manufacturing Engineering

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  • Cite this

    Park, J., Ha, Y., & Chung, W. (2011). Reduced complexity MLSD equalizers based on bidirectional DFEs. In Digest of Technical Papers - IEEE International Conference on Consumer Electronics (pp. 437-438). [5722670] https://doi.org/10.1109/ICCE.2011.5722670