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Advanced Channel Estimation for MIMO-OFDM in Realistic Channel Conditions

Advanced Channel Estimation for MIMO-OFDM in Realistic Channel Conditions
Advanced Channel Estimation for MIMO-OFDM in Realistic Channel Conditions
An advanced decision-directed channel estimation scheme is proposed, which is suitable for employment in a wide range of multi-antenna multi-carrier systems as well as for communications over the entire range of practical channel conditions. In particular, we consider a MIMO-OFDM system operating in a mobile wireless multipath channel, which exhibits frequency-selective Rayleigh fading and is characterized by a time-variant power delay profile. Both the mean square error as well as the bit error rate performances achieved by the proposed system are documented. Specifically, we report a virtually errorfree performance of a rate 1/2 turbo-coded 8x8-QPSK-OFDM system, exhibiting an effective throughput of 8·2·1/2=8bits/sec/Hz, while having a pilot overhead of only 10%, at an SNR of 10dB and an OFDM-symbol-normalized Doppler frequency of 0.003, which corresponds to the mobile terminal speed of about 65 km/h.
2528-2533
Akhtman, J.
d4fd2b26-c123-463d-847c-80adc83a89fa
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Akhtman, J.
d4fd2b26-c123-463d-847c-80adc83a89fa
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Akhtman, J. and Hanzo, L. (2007) Advanced Channel Estimation for MIMO-OFDM in Realistic Channel Conditions. ICC'07, United Kingdom. 24 - 28 Jun 2007. pp. 2528-2533 .

Record type: Conference or Workshop Item (Paper)

Abstract

An advanced decision-directed channel estimation scheme is proposed, which is suitable for employment in a wide range of multi-antenna multi-carrier systems as well as for communications over the entire range of practical channel conditions. In particular, we consider a MIMO-OFDM system operating in a mobile wireless multipath channel, which exhibits frequency-selective Rayleigh fading and is characterized by a time-variant power delay profile. Both the mean square error as well as the bit error rate performances achieved by the proposed system are documented. Specifically, we report a virtually errorfree performance of a rate 1/2 turbo-coded 8x8-QPSK-OFDM system, exhibiting an effective throughput of 8·2·1/2=8bits/sec/Hz, while having a pilot overhead of only 10%, at an SNR of 10dB and an OFDM-symbol-normalized Doppler frequency of 0.003, which corresponds to the mobile terminal speed of about 65 km/h.

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More information

Published date: 2007
Additional Information: Event Dates: 24-28 June 2007
Venue - Dates: ICC'07, United Kingdom, 2007-06-24 - 2007-06-28
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 263903
URI: http://eprints.soton.ac.uk/id/eprint/263903
PURE UUID: 525e4dca-f6c9-48e8-b31c-b1a7bafa499e
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 19 Apr 2007
Last modified: 12 Nov 2019 02:04

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