Iterative receivers with joint channel and frequency offset estimation in time-variant fading channels

Rami Khal; Yury Zakharov

doi:10.1109/ISWCS.2010.5624324

Iterative receivers with joint channel and frequency offset estimation in time-variant fading channels

Rami Khal, Yury Zakharov

Engineering

Research output: Contribution to conference › Paper › peer-review

Abstract

We develop iterative turbo receivers for time-variant fading channels which jointly perform channel and frequency offset estimation together with data detection and decoding. Three versions of the joint estimator, the Bayesian, the maximum likelihood and the regularised-maximum likelihood are presented depending on how much knowledge of channel statistics is available. The estimation and detection are based on the basis expansion model of the fading time variations and use the di-chotomous search frequency estimation technique. Soft information generated in the turbo decoder is used to improve the quality of detection in the subsequent iterations. Simulation results show that the proposed receivers provide as good performance as the corresponding ones operating with perfect knowledge of the frequency offset.

Original language	English
Pages	844-848
Number of pages	5
DOIs	https://doi.org/10.1109/ISWCS.2010.5624324
Publication status	Published - Sept 2010
Event	Wireless Communication Systems (ISWCS), 2010 - York, United Kingdom Duration: 19 Sept 2010 → 22 Sept 2010

Conference

Conference	Wireless Communication Systems (ISWCS), 2010
Country/Territory	United Kingdom
City	York
Period	19/09/10 → 22/09/10

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10.1109/ISWCS.2010.5624324

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abstract = "We develop iterative turbo receivers for time-variant fading channels which jointly perform channel and frequency offset estimation together with data detection and decoding. Three versions of the joint estimator, the Bayesian, the maximum likelihood and the regularised-maximum likelihood are presented depending on how much knowledge of channel statistics is available. The estimation and detection are based on the basis expansion model of the fading time variations and use the di-chotomous search frequency estimation technique. Soft information generated in the turbo decoder is used to improve the quality of detection in the subsequent iterations. Simulation results show that the proposed receivers provide as good performance as the corresponding ones operating with perfect knowledge of the frequency offset.",

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doi = "10.1109/ISWCS.2010.5624324",

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AB - We develop iterative turbo receivers for time-variant fading channels which jointly perform channel and frequency offset estimation together with data detection and decoding. Three versions of the joint estimator, the Bayesian, the maximum likelihood and the regularised-maximum likelihood are presented depending on how much knowledge of channel statistics is available. The estimation and detection are based on the basis expansion model of the fading time variations and use the di-chotomous search frequency estimation technique. Soft information generated in the turbo decoder is used to improve the quality of detection in the subsequent iterations. Simulation results show that the proposed receivers provide as good performance as the corresponding ones operating with perfect knowledge of the frequency offset.

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Iterative receivers with joint channel and frequency offset estimation in time-variant fading channels

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