Performance analysis of different equalization algorithms in a modified iterative scheme

Shuangshuang Han, Dongfeng Yuan, Xiang Cheng

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

Abstract

This paper proposes a modified iterative scheme (MI) for the data transmitted by more efficient way over inter-symbol interference (ISI) channels, then compares and analyzes the performance for three equalization algorithms in MI: improved MAX-Log-MAP (I-MLM) algorithm, maximum a posteriori (MAP) algorithm and linear minimum mean-squared error (LMMSE) algorithm. First we analyze and compare these three algorithms in traditional turbo equalization (TE) scheme. Second, according to the good understanding of the aforementioned algorithms and the novel iterative (NI) scheme which combines parallel with serial concatenation turbo-like scheme, we propose the MI scheme and compare the performance of three algorithms in MI, named as MI-I-MLM, MI-MAP and MI-LMMSE respectively. Both analytical and simulation results demonstrate that the performance of MI-I-MLM is very close to MI-MAP and much better than MI-LMMSE while its computational complexity is much lower.

Original languageEnglish
Title of host publicationIET 2nd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2008
Pages364-367
Number of pages4
Edition545 CP
DOIs
Publication statusPublished - 2008
EventIET 2nd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2008 - Beijing, China
Duration: 12 Oct 200815 Oct 2008

Conference

ConferenceIET 2nd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2008
CountryChina
CityBeijing
Period12/10/0815/10/08

Keywords

  • Linear minimum mean-squared error (LMMSE)
  • Max-Log-MAP algorithm
  • Maximum a posteriori (MAP)
  • Turbo equalization (TE)

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  • Cite this

    Han, S., Yuan, D., & Cheng, X. (2008). Performance analysis of different equalization algorithms in a modified iterative scheme. In IET 2nd International Conference on Wireless, Mobile and Multimedia Networks, ICWMMN 2008 (545 CP ed., pp. 364-367) https://doi.org/10.1049/cp:20081012