Performance of iterative MAP receiver for MIMO-OFDM channels with anti-gray mapping

S. Ahmed; T. Ratnarajah; M. Sellathurai; C. F N Cowan

doi:10.1109/VETECS.2008.158

Performance of iterative MAP receiver for MIMO-OFDM channels with anti-gray mapping

S. Ahmed^*, T. Ratnarajah, M. Sellathurai, C. F N Cowan

^*Corresponding author for this work

School of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

In recent years, due to the low complexity nature of the turbo processing and excellent bit-error-rate (BER) performance, designing turbo-like receivers for frequency-selective MIMO channels has been of great research interest. The performance gain in turbo decoders is due to an extrinsic information transfer (EXIT) process between the detection and the decoding stages as compare to a traditional system that treats these processes in isolation. However, the challenge faced with these iterative receivers is the understanding of their performance and convergence behaviour. In this paper, we study an iterative maximum a posteriori (MAP) receiver for MIMO orthogonal frequency division multiplexing (OFDM) channels and its convergence behaviour. We analyze the performance of the proposed transceiver system with Gray and anti-Gray mapping using EXIT chart and study the effects of various settings of transmit and receive antenna on the turbo cliff in BER performance.

Original language	English
Title of host publication	IEEE Vehicular Technology Conference
Pages	719-723
Number of pages	5
DOIs	https://doi.org/10.1109/VETECS.2008.158
Publication status	Published - 28 Jul 2008
Event	2008 IEEE 67th Vehicular Technology Conference-Spring, VTC - Marina Bay, United Kingdom Duration: 11 May 2008 → 14 May 2008

Conference

Conference	2008 IEEE 67th Vehicular Technology Conference-Spring, VTC
Country/Territory	United Kingdom
City	Marina Bay
Period	11/05/08 → 14/05/08

Keywords / Materials (for Non-textual outputs)

Anti-Gray and Gray modulation
EXIT chart
Iterative receiver
MAP
MIMO frequency-selective channels
OFDM

Access to Document

10.1109/VETECS.2008.158

Cite this

@inproceedings{df717f6c77304c6699e55cb570bd944a,

title = "Performance of iterative MAP receiver for MIMO-OFDM channels with anti-gray mapping",

abstract = "In recent years, due to the low complexity nature of the turbo processing and excellent bit-error-rate (BER) performance, designing turbo-like receivers for frequency-selective MIMO channels has been of great research interest. The performance gain in turbo decoders is due to an extrinsic information transfer (EXIT) process between the detection and the decoding stages as compare to a traditional system that treats these processes in isolation. However, the challenge faced with these iterative receivers is the understanding of their performance and convergence behaviour. In this paper, we study an iterative maximum a posteriori (MAP) receiver for MIMO orthogonal frequency division multiplexing (OFDM) channels and its convergence behaviour. We analyze the performance of the proposed transceiver system with Gray and anti-Gray mapping using EXIT chart and study the effects of various settings of transmit and receive antenna on the turbo cliff in BER performance.",

keywords = "Anti-Gray and Gray modulation, EXIT chart, Iterative receiver, MAP, MIMO frequency-selective channels, OFDM",

author = "S. Ahmed and T. Ratnarajah and M. Sellathurai and Cowan, {C. F N}",

year = "2008",

month = jul,

day = "28",

doi = "10.1109/VETECS.2008.158",

language = "English",

isbn = "9781424416455",

pages = "719--723",

booktitle = "IEEE Vehicular Technology Conference",

note = "2008 IEEE 67th Vehicular Technology Conference-Spring, VTC ; Conference date: 11-05-2008 Through 14-05-2008",

}

TY - GEN

T1 - Performance of iterative MAP receiver for MIMO-OFDM channels with anti-gray mapping

AU - Ahmed, S.

AU - Ratnarajah, T.

AU - Sellathurai, M.

AU - Cowan, C. F N

PY - 2008/7/28

Y1 - 2008/7/28

N2 - In recent years, due to the low complexity nature of the turbo processing and excellent bit-error-rate (BER) performance, designing turbo-like receivers for frequency-selective MIMO channels has been of great research interest. The performance gain in turbo decoders is due to an extrinsic information transfer (EXIT) process between the detection and the decoding stages as compare to a traditional system that treats these processes in isolation. However, the challenge faced with these iterative receivers is the understanding of their performance and convergence behaviour. In this paper, we study an iterative maximum a posteriori (MAP) receiver for MIMO orthogonal frequency division multiplexing (OFDM) channels and its convergence behaviour. We analyze the performance of the proposed transceiver system with Gray and anti-Gray mapping using EXIT chart and study the effects of various settings of transmit and receive antenna on the turbo cliff in BER performance.

AB - In recent years, due to the low complexity nature of the turbo processing and excellent bit-error-rate (BER) performance, designing turbo-like receivers for frequency-selective MIMO channels has been of great research interest. The performance gain in turbo decoders is due to an extrinsic information transfer (EXIT) process between the detection and the decoding stages as compare to a traditional system that treats these processes in isolation. However, the challenge faced with these iterative receivers is the understanding of their performance and convergence behaviour. In this paper, we study an iterative maximum a posteriori (MAP) receiver for MIMO orthogonal frequency division multiplexing (OFDM) channels and its convergence behaviour. We analyze the performance of the proposed transceiver system with Gray and anti-Gray mapping using EXIT chart and study the effects of various settings of transmit and receive antenna on the turbo cliff in BER performance.

KW - Anti-Gray and Gray modulation

KW - EXIT chart

KW - Iterative receiver

KW - MAP

KW - MIMO frequency-selective channels

KW - OFDM

UR - http://www.scopus.com/inward/record.url?scp=47749147762&partnerID=8YFLogxK

U2 - 10.1109/VETECS.2008.158

DO - 10.1109/VETECS.2008.158

M3 - Conference contribution

AN - SCOPUS:47749147762

SN - 9781424416455

SP - 719

EP - 723

BT - IEEE Vehicular Technology Conference

T2 - 2008 IEEE 67th Vehicular Technology Conference-Spring, VTC

Y2 - 11 May 2008 through 14 May 2008

ER -

Performance of iterative MAP receiver for MIMO-OFDM channels with anti-gray mapping

Abstract

Conference

Keywords / Materials (for Non-textual outputs)

Access to Document

Other files and links

Fingerprint

Cite this