A new reduced-complexity adaptive PSP-MLSE receiver for GSM/EDGE systems

Zhenhong Li; Olli Piirainen; Aarne Mämmelä

doi:10.1109/PIMRC.2001.965505

A new reduced-complexity adaptive PSP-MLSE receiver for GSM/EDGE systems

Zhenhong Li, Olli Piirainen, Aarne Mämmelä

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

7 Citations (Scopus)

Abstract

A new adaptive reduced-complexity MLSE receiver based on per-survivor processing (PSP-MLSE) and a decision feedback equalizer (DFE) for GSM/EDGE system with 8PSK modulation is proposed. The initial channel impulse response (CIR) is estimated by the LS algorithm with a mid-amble and updated by the LMS algorithm during data transmission. The proposed scheme handles the first part of the sampled CIR by the PSP-MLSE and the rest by the DFE for complexity reduction. Instead of the conventional global DFE (decision per sample), the local DFE (decision per state/survivor) is suggested to reduce error propagation. A good tradeoff between performance and complexity, by retaining the PSP-MLSE for good performance and using the local DFE for intersymbol interference cancellation, is obtained. Computer simulations indicate that the PSP-MLSE with the local DFE is clearly superior to that with the global DFE, especially in severe ISI channels.

Original language	English
Title of host publication	12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001
Publisher	IEEE Institute of Electrical and Electronic Engineers
ISBN (Print)	0-7803-7244-1
DOIs	https://doi.org/10.1109/PIMRC.2001.965505
Publication status	Published - 2001
MoE publication type	A4 Article in a conference publication
Event	12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2001 - San Diego, United States Duration: 30 Sep 2001 → 3 Oct 2001

Conference

Conference	12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2001
Abbreviated title	PIMRC 2001
Country	United States
City	San Diego
Period	30/09/01 → 3/10/01

Keywords

GSM
data communication
maximum likelihood estimation
delay
interference cancellation
binary phase shift keying
computer errors
decision feedback equalizers

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Cite this

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title = "A new reduced-complexity adaptive PSP-MLSE receiver for GSM/EDGE systems",

abstract = "A new adaptive reduced-complexity MLSE receiver based on per-survivor processing (PSP-MLSE) and a decision feedback equalizer (DFE) for GSM/EDGE system with 8PSK modulation is proposed. The initial channel impulse response (CIR) is estimated by the LS algorithm with a mid-amble and updated by the LMS algorithm during data transmission. The proposed scheme handles the first part of the sampled CIR by the PSP-MLSE and the rest by the DFE for complexity reduction. Instead of the conventional global DFE (decision per sample), the local DFE (decision per state/survivor) is suggested to reduce error propagation. A good tradeoff between performance and complexity, by retaining the PSP-MLSE for good performance and using the local DFE for intersymbol interference cancellation, is obtained. Computer simulations indicate that the PSP-MLSE with the local DFE is clearly superior to that with the global DFE, especially in severe ISI channels.",

keywords = "GSM, data communication, maximum likelihood estimation, delay, interference cancellation, binary phase shift keying, computer errors, decision feedback equalizers",

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Li, Z, Piirainen, O & Mämmelä, A 2001, A new reduced-complexity adaptive PSP-MLSE receiver for GSM/EDGE systems. in 12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. IEEE Institute of Electrical and Electronic Engineers, 12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2001, San Diego, United States, 30/09/01. https://doi.org/10.1109/PIMRC.2001.965505

A new reduced-complexity adaptive PSP-MLSE receiver for GSM/EDGE systems. / Li, Zhenhong; Piirainen, Olli; Mämmelä, Aarne.

12th IEEE International Symposium on Personal, Indoor and Mobile Radio Communications. PIMRC 2001. IEEE Institute of Electrical and Electronic Engineers, 2001.

Research output: Chapter in Book/Report/Conference proceeding › Conference article in proceedings › Scientific › peer-review

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N2 - A new adaptive reduced-complexity MLSE receiver based on per-survivor processing (PSP-MLSE) and a decision feedback equalizer (DFE) for GSM/EDGE system with 8PSK modulation is proposed. The initial channel impulse response (CIR) is estimated by the LS algorithm with a mid-amble and updated by the LMS algorithm during data transmission. The proposed scheme handles the first part of the sampled CIR by the PSP-MLSE and the rest by the DFE for complexity reduction. Instead of the conventional global DFE (decision per sample), the local DFE (decision per state/survivor) is suggested to reduce error propagation. A good tradeoff between performance and complexity, by retaining the PSP-MLSE for good performance and using the local DFE for intersymbol interference cancellation, is obtained. Computer simulations indicate that the PSP-MLSE with the local DFE is clearly superior to that with the global DFE, especially in severe ISI channels.

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