Linear constellation-precoding for OFDM with maximum multipath diversity and coding gains

Zhiqiang Liu; Yan Xin; Georgios B Giannakis

Linear constellation-precoding for OFDM with maximum multipath diversity and coding gains

Zhiqiang Liu, Yan Xin, Georgios B Giannakis

Electrical and Computer Engineering

Research output: Contribution to journal › Conference article › peer-review

25 Scopus citations

Abstract

This paper introduces linear constellation precoding (LCP) for OFDM transmissions over frequency-selective fading channels. Exploiting the correlation structure of OFDM subchannels, and choosing system parameters properly, we first perform optimal subcarrier grouping to divide the set of correlated subchannels into subsets. Within each subset, a non-redundant constellation-specific unitary precoder is then designed to achieve maximum multipath diversity and coding gains. While greatly reducing the decoding complexity and simplifying the LCP design, subcarrier grouping offers optimal performance by maximizing multipath diversity and coding gains. In addition, the proposed system does not sacrifice the transmission rate. Analytic evaluation and corroborating simulations reveal its performance merits.

Original language	English (US)
Pages (from-to)	1445-1449
Number of pages	5
Journal	Conference Record of the Asilomar Conference on Signals, Systems and Computers
Volume	2
State	Published - 2001
Event	35th Asilomar Conference on Signals, Systems and Computers - Pacific Grove, CA, United States Duration: Nov 4 2001 → Nov 7 2001

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title = "Linear constellation-precoding for OFDM with maximum multipath diversity and coding gains",

abstract = "This paper introduces linear constellation precoding (LCP) for OFDM transmissions over frequency-selective fading channels. Exploiting the correlation structure of OFDM subchannels, and choosing system parameters properly, we first perform optimal subcarrier grouping to divide the set of correlated subchannels into subsets. Within each subset, a non-redundant constellation-specific unitary precoder is then designed to achieve maximum multipath diversity and coding gains. While greatly reducing the decoding complexity and simplifying the LCP design, subcarrier grouping offers optimal performance by maximizing multipath diversity and coding gains. In addition, the proposed system does not sacrifice the transmission rate. Analytic evaluation and corroborating simulations reveal its performance merits.",

author = "Zhiqiang Liu and Yan Xin and Giannakis, {Georgios B}",

year = "2001",

language = "English (US)",

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pages = "1445--1449",

journal = "Conference Record of the Asilomar Conference on Signals, Systems and Computers",

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note = "35th Asilomar Conference on Signals, Systems and Computers ; Conference date: 04-11-2001 Through 07-11-2001",

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TY - JOUR

T1 - Linear constellation-precoding for OFDM with maximum multipath diversity and coding gains

AU - Liu, Zhiqiang

AU - Xin, Yan

AU - Giannakis, Georgios B

PY - 2001

Y1 - 2001

N2 - This paper introduces linear constellation precoding (LCP) for OFDM transmissions over frequency-selective fading channels. Exploiting the correlation structure of OFDM subchannels, and choosing system parameters properly, we first perform optimal subcarrier grouping to divide the set of correlated subchannels into subsets. Within each subset, a non-redundant constellation-specific unitary precoder is then designed to achieve maximum multipath diversity and coding gains. While greatly reducing the decoding complexity and simplifying the LCP design, subcarrier grouping offers optimal performance by maximizing multipath diversity and coding gains. In addition, the proposed system does not sacrifice the transmission rate. Analytic evaluation and corroborating simulations reveal its performance merits.

AB - This paper introduces linear constellation precoding (LCP) for OFDM transmissions over frequency-selective fading channels. Exploiting the correlation structure of OFDM subchannels, and choosing system parameters properly, we first perform optimal subcarrier grouping to divide the set of correlated subchannels into subsets. Within each subset, a non-redundant constellation-specific unitary precoder is then designed to achieve maximum multipath diversity and coding gains. While greatly reducing the decoding complexity and simplifying the LCP design, subcarrier grouping offers optimal performance by maximizing multipath diversity and coding gains. In addition, the proposed system does not sacrifice the transmission rate. Analytic evaluation and corroborating simulations reveal its performance merits.

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M3 - Conference article

AN - SCOPUS:0035574956

SN - 1058-6393

VL - 2

SP - 1445

EP - 1449

JO - Conference Record of the Asilomar Conference on Signals, Systems and Computers

JF - Conference Record of the Asilomar Conference on Signals, Systems and Computers

T2 - 35th Asilomar Conference on Signals, Systems and Computers

Y2 - 4 November 2001 through 7 November 2001

ER -

Linear constellation-precoding for OFDM with maximum multipath diversity and coding gains

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