Low complexity MMSE-SIC equalizer employing time-domain recursion for OFDM systems

Ji Hyun Park, Younghoon Whang, Kwang Soon Kim

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

In this letter, a novel time-domain recursive algorithm is proposed for a minimum-mean-squared error (MMSE) with successive interference cancellation (SIC) scheme. This algorithm allows us to reduce the complexity of classical MMSE-SIC equalizer for suppressing intercarrier interference (ICI) caused by time-varying multipath channels in orthogonal frequency division multiplexing (OFDM) systems, and it can provide almost the same performance as that of the optimal MMSE-SIC equalizer. It is shown in complexity analysis that the proposed scheme shows better complexity reduction than previously reported low-complexity MMSE-SIC schemes when applied to a channel equalizer for an OFDM system.

Original languageEnglish
Pages (from-to)633-636
Number of pages4
JournalIEEE Signal Processing Letters
Volume15
DOIs
Publication statusPublished - 2008 Dec 1

Fingerprint

Successive Interference Cancellation
Equalizer
Equalizers
Orthogonal Frequency Division multiplexing (OFDM)
Mean Squared Error
Recursion
Low Complexity
Orthogonal frequency division multiplexing
Time Domain
Intercarrier Interference
Multipath Channels
Complexity Analysis
Multipath propagation
Recursive Algorithm
Time-varying

All Science Journal Classification (ASJC) codes

  • Signal Processing
  • Electrical and Electronic Engineering
  • Applied Mathematics

Cite this

@article{6d8f6ab0fb95499b9cad57b673fd1f46,
title = "Low complexity MMSE-SIC equalizer employing time-domain recursion for OFDM systems",
abstract = "In this letter, a novel time-domain recursive algorithm is proposed for a minimum-mean-squared error (MMSE) with successive interference cancellation (SIC) scheme. This algorithm allows us to reduce the complexity of classical MMSE-SIC equalizer for suppressing intercarrier interference (ICI) caused by time-varying multipath channels in orthogonal frequency division multiplexing (OFDM) systems, and it can provide almost the same performance as that of the optimal MMSE-SIC equalizer. It is shown in complexity analysis that the proposed scheme shows better complexity reduction than previously reported low-complexity MMSE-SIC schemes when applied to a channel equalizer for an OFDM system.",
author = "Park, {Ji Hyun} and Younghoon Whang and Kim, {Kwang Soon}",
year = "2008",
month = "12",
day = "1",
doi = "10.1109/LSP.2008.2003991",
language = "English",
volume = "15",
pages = "633--636",
journal = "IEEE Signal Processing Letters",
issn = "1070-9908",
publisher = "Institute of Electrical and Electronics Engineers Inc.",

}

Low complexity MMSE-SIC equalizer employing time-domain recursion for OFDM systems. / Park, Ji Hyun; Whang, Younghoon; Kim, Kwang Soon.

In: IEEE Signal Processing Letters, Vol. 15, 01.12.2008, p. 633-636.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Low complexity MMSE-SIC equalizer employing time-domain recursion for OFDM systems

AU - Park, Ji Hyun

AU - Whang, Younghoon

AU - Kim, Kwang Soon

PY - 2008/12/1

Y1 - 2008/12/1

N2 - In this letter, a novel time-domain recursive algorithm is proposed for a minimum-mean-squared error (MMSE) with successive interference cancellation (SIC) scheme. This algorithm allows us to reduce the complexity of classical MMSE-SIC equalizer for suppressing intercarrier interference (ICI) caused by time-varying multipath channels in orthogonal frequency division multiplexing (OFDM) systems, and it can provide almost the same performance as that of the optimal MMSE-SIC equalizer. It is shown in complexity analysis that the proposed scheme shows better complexity reduction than previously reported low-complexity MMSE-SIC schemes when applied to a channel equalizer for an OFDM system.

AB - In this letter, a novel time-domain recursive algorithm is proposed for a minimum-mean-squared error (MMSE) with successive interference cancellation (SIC) scheme. This algorithm allows us to reduce the complexity of classical MMSE-SIC equalizer for suppressing intercarrier interference (ICI) caused by time-varying multipath channels in orthogonal frequency division multiplexing (OFDM) systems, and it can provide almost the same performance as that of the optimal MMSE-SIC equalizer. It is shown in complexity analysis that the proposed scheme shows better complexity reduction than previously reported low-complexity MMSE-SIC schemes when applied to a channel equalizer for an OFDM system.

UR - http://www.scopus.com/inward/record.url?scp=67650153096&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67650153096&partnerID=8YFLogxK

U2 - 10.1109/LSP.2008.2003991

DO - 10.1109/LSP.2008.2003991

M3 - Article

VL - 15

SP - 633

EP - 636

JO - IEEE Signal Processing Letters

JF - IEEE Signal Processing Letters

SN - 1070-9908

ER -