Parallel Interference Cancellation Assisted Decision-Directed Channel Estimation for Multi-User OFDM
Parallel Interference Cancellation Assisted Decision-Directed Channel Estimation for Multi-User OFDM
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.
35.1-35.5
Münster, M.
c7bbba92-827f-4a77-bdc2-fbed67caab36
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
September 2001
Münster, M.
c7bbba92-827f-4a77-bdc2-fbed67caab36
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Münster, M. and Hanzo, L.
(2001)
Parallel Interference Cancellation Assisted Decision-Directed Channel Estimation for Multi-User OFDM.
6th International OFDM Workshop, Hamburg, Germany.
18 - 19 Sep 2001.
.
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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Published date: September 2001
Additional Information:
Event Dates: 18-19 September 2001 Address: Hamburg, Germany
Venue - Dates:
6th International OFDM Workshop, Hamburg, Germany, 2001-09-18 - 2001-09-19
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 256111
URI: http://eprints.soton.ac.uk/id/eprint/256111
PURE UUID: 9adbe1ba-e510-4a24-bbff-9b100ff86378
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Date deposited: 06 Jan 2004
Last modified: 18 Mar 2024 02:33
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Contributors
Author:
M. Münster
Author:
L. Hanzo
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