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Multi-User OFDM Employing Parallel Interference Cancellation Assisted Decision-Directed Channel Estimation

Multi-User OFDM Employing Parallel Interference Cancellation Assisted Decision-Directed Channel Estimation
Multi-User OFDM Employing Parallel Interference Cancellation Assisted Decision-Directed Channel Estimation
Multiple reception antenna assisted Space Division Multiple Access (SDMA) techniques designed for wireless Orthogonal Frequency Division Multiplexing (OFDM) systems have recently drawn wide interests. These techniques facilitate the implementation of effective multi-user detection algorithms at the receiver. A prerequisite of their operation is the availability of an estimate of the channels’ frequency domain transfer functions. This contribution analyses a recursive Decision-Directed Channel Estimator (DDCE). Our simulation results demonstrate that this channel transfer function estimator is capable of outperforming state-of-the-art transversal filter based DDCEs in terms of the mean-square estimation error in scenarios, where the product of the number of transmit antennas and the number of CIR taps to be estimated per transmit antenna approaches the number of subcarriers hosted by an OFDM symbol.
1413-1417
Münster, M.
c7bbba92-827f-4a77-bdc2-fbed67caab36
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Münster, M.
c7bbba92-827f-4a77-bdc2-fbed67caab36
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Münster, M. and Hanzo, L. (2002) Multi-User OFDM Employing Parallel Interference Cancellation Assisted Decision-Directed Channel Estimation. VTC'2002 (Fall), Vancouver, Canada. 23 - 27 Sep 2002. pp. 1413-1417 .

Record type: Conference or Workshop Item (Paper)

Abstract

Multiple reception antenna assisted Space Division Multiple Access (SDMA) techniques designed for wireless Orthogonal Frequency Division Multiplexing (OFDM) systems have recently drawn wide interests. These techniques facilitate the implementation of effective multi-user detection algorithms at the receiver. A prerequisite of their operation is the availability of an estimate of the channels’ frequency domain transfer functions. This contribution analyses a recursive Decision-Directed Channel Estimator (DDCE). Our simulation results demonstrate that this channel transfer function estimator is capable of outperforming state-of-the-art transversal filter based DDCEs in terms of the mean-square estimation error in scenarios, where the product of the number of transmit antennas and the number of CIR taps to be estimated per transmit antenna approaches the number of subcarriers hosted by an OFDM symbol.

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More information

Published date: 2002
Additional Information: Event Dates: 24-28 September 2002
Venue - Dates: VTC'2002 (Fall), Vancouver, Canada, 2002-09-23 - 2002-09-27
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 258271
URI: http://eprints.soton.ac.uk/id/eprint/258271
PURE UUID: 472d19c6-5236-4538-b7df-4af90b805926
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 11 Dec 2003
Last modified: 07 Oct 2020 01:33

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Contributors

Author: M. Münster
Author: L. Hanzo ORCID iD

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