Iterative channel estimation and decoding in turbo coded space time systems

Sefi Ronen; Shraga I. Bross; Shlomo Shamai; Tolga M. Duman

Iterative channel estimation and decoding in turbo coded space time systems

Sefi Ronen, Shraga I. Bross, Shlomo Shamai, Tolga M. Duman

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

1 Scopus citations

Abstract

A non-coherent multiple antenna coded communication system over both block fading and time-selective flat fading Rayleigh channel is considered. Several iterative decoding strategies consisting of pilot symbol assisted demodulation and turbo decoding are proposed. It is shown that at a system rate of 0.9 bits per channel use, the SNR required to achieve a BER of 10^-4 is only about 2 dB away from the imperfect CSI capacity lower bound. The channel estimation error variance is demonstrated to be close to the theoretical limit set by the Modified Cramer-Rao bound. The simulation results coincide with the trends dictated by recent information-theoretic analysis and demonstrate the effect that the inaccuracy of the channel estimation has on the performance of the iterative decoding scheme.

Original language	English
Pages	80-83
Number of pages	4
State	Published - 2004
Externally published	Yes
Event	2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings - Tel-Aviv, Israel Duration: 6 Sep 2004 → 7 Sep 2004

Conference

Conference	2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings
Country/Territory	Israel
City	Tel-Aviv
Period	6/09/04 → 7/09/04

Keywords

Channel estimation
EM algorithm
Iterative receiver
MCRB
Pilot an training
Space time turbo code

Cite this

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title = "Iterative channel estimation and decoding in turbo coded space time systems",

abstract = "A non-coherent multiple antenna coded communication system over both block fading and time-selective flat fading Rayleigh channel is considered. Several iterative decoding strategies consisting of pilot symbol assisted demodulation and turbo decoding are proposed. It is shown that at a system rate of 0.9 bits per channel use, the SNR required to achieve a BER of 10-4 is only about 2 dB away from the imperfect CSI capacity lower bound. The channel estimation error variance is demonstrated to be close to the theoretical limit set by the Modified Cramer-Rao bound. The simulation results coincide with the trends dictated by recent information-theoretic analysis and demonstrate the effect that the inaccuracy of the channel estimation has on the performance of the iterative decoding scheme.",

keywords = "Channel estimation, EM algorithm, Iterative receiver, MCRB, Pilot an training, Space time turbo code",

author = "Sefi Ronen and Bross, {Shraga I.} and Shlomo Shamai and Duman, {Tolga M.}",

year = "2004",

language = "אנגלית",

pages = "80--83",

note = "2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings ; Conference date: 06-09-2004 Through 07-09-2004",

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TY - CONF

T1 - Iterative channel estimation and decoding in turbo coded space time systems

AU - Ronen, Sefi

AU - Bross, Shraga I.

AU - Shamai, Shlomo

AU - Duman, Tolga M.

PY - 2004

Y1 - 2004

N2 - A non-coherent multiple antenna coded communication system over both block fading and time-selective flat fading Rayleigh channel is considered. Several iterative decoding strategies consisting of pilot symbol assisted demodulation and turbo decoding are proposed. It is shown that at a system rate of 0.9 bits per channel use, the SNR required to achieve a BER of 10-4 is only about 2 dB away from the imperfect CSI capacity lower bound. The channel estimation error variance is demonstrated to be close to the theoretical limit set by the Modified Cramer-Rao bound. The simulation results coincide with the trends dictated by recent information-theoretic analysis and demonstrate the effect that the inaccuracy of the channel estimation has on the performance of the iterative decoding scheme.

AB - A non-coherent multiple antenna coded communication system over both block fading and time-selective flat fading Rayleigh channel is considered. Several iterative decoding strategies consisting of pilot symbol assisted demodulation and turbo decoding are proposed. It is shown that at a system rate of 0.9 bits per channel use, the SNR required to achieve a BER of 10-4 is only about 2 dB away from the imperfect CSI capacity lower bound. The channel estimation error variance is demonstrated to be close to the theoretical limit set by the Modified Cramer-Rao bound. The simulation results coincide with the trends dictated by recent information-theoretic analysis and demonstrate the effect that the inaccuracy of the channel estimation has on the performance of the iterative decoding scheme.

KW - Channel estimation

KW - EM algorithm

KW - Iterative receiver

KW - MCRB

KW - Pilot an training

KW - Space time turbo code

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T2 - 2004 23rd IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings

Y2 - 6 September 2004 through 7 September 2004

ER -

Iterative channel estimation and decoding in turbo coded space time systems

Abstract

Conference

Keywords

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