Exploiting error-control coding and cyclic-prefix in channel estimation for coded ofdm systems

Ghazi A. Al-Rawi; Tareq Y. Al-Naffouri; Ahmad Bahai; John Cioffi

doi:10.1109/LCOMM.2003.814712

Exploiting error-control coding and cyclic-prefix in channel estimation for coded ofdm systems

Ghazi A. Al-Rawi, Tareq Y. Al-Naffouri, Ahmad Bahai, John Cioffi

Research output: Contribution to journal › Article › peer-review

28 Scopus citations

Abstract

OFDM systems typically use coding and interleaving across subchannels to exploit frequency diversity on frequency-selective channels. This letter presents a low-complexity iterative algorithm for blind and semi-blind joint channel estimation and soft decoding in coded OFDM systems. The proposed algorithm takes advantage of the channel finite delay-spread constraint and the extra observation offered by the cyclic-prefix. It converges within a single OFDM symbol and, therefore, has a minimum latency.

Original language	English (US)
Pages (from-to)	388-390
Number of pages	3
Journal	IEEE Communications Letters
Volume	7
Issue number	8
DOIs	https://doi.org/10.1109/LCOMM.2003.814712
State	Published - Aug 2003
Externally published	Yes

Keywords

Adaptive equalization
Blind channel estimation
Iterative detection
Multicarrier transmission

ASJC Scopus subject areas

Modeling and Simulation
Computer Science Applications
Electrical and Electronic Engineering

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10.1109/LCOMM.2003.814712

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abstract = "OFDM systems typically use coding and interleaving across subchannels to exploit frequency diversity on frequency-selective channels. This letter presents a low-complexity iterative algorithm for blind and semi-blind joint channel estimation and soft decoding in coded OFDM systems. The proposed algorithm takes advantage of the channel finite delay-spread constraint and the extra observation offered by the cyclic-prefix. It converges within a single OFDM symbol and, therefore, has a minimum latency.",

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AU - Bahai, Ahmad

AU - Cioffi, John

PY - 2003/8

Y1 - 2003/8

N2 - OFDM systems typically use coding and interleaving across subchannels to exploit frequency diversity on frequency-selective channels. This letter presents a low-complexity iterative algorithm for blind and semi-blind joint channel estimation and soft decoding in coded OFDM systems. The proposed algorithm takes advantage of the channel finite delay-spread constraint and the extra observation offered by the cyclic-prefix. It converges within a single OFDM symbol and, therefore, has a minimum latency.

AB - OFDM systems typically use coding and interleaving across subchannels to exploit frequency diversity on frequency-selective channels. This letter presents a low-complexity iterative algorithm for blind and semi-blind joint channel estimation and soft decoding in coded OFDM systems. The proposed algorithm takes advantage of the channel finite delay-spread constraint and the extra observation offered by the cyclic-prefix. It converges within a single OFDM symbol and, therefore, has a minimum latency.

KW - Adaptive equalization

KW - Blind channel estimation

KW - Iterative detection

KW - Multicarrier transmission

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JO - IEEE Communications Letters

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ER -

Exploiting error-control coding and cyclic-prefix in channel estimation for coded ofdm systems

Abstract

Keywords

ASJC Scopus subject areas

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