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Co-Channel Interference Suppression Assisted Adaptive OFDM in Interference-Limited Environments

Co-Channel Interference Suppression Assisted Adaptive OFDM in Interference-Limited Environments
Co-Channel Interference Suppression Assisted Adaptive OFDM in Interference-Limited Environments
This paper investigates the feasibility of Adaptive OFDM (AOFDM) transmissions in co-channel interference limited environments upon invoking the Sample Matrix Inversion (SMI) algorithm. The sub carrier based Signal-to-Noise Ratio (SNR), which can be derived from the SMI algorithm's weights is shown to be in most cases an effective measure for controlling the modulation mode adaptation. A simple pilot based scheme is introduced, which allows channel parameter estimation on an OFDM symbol-by-symbol basis, The system BER performance is shown to be improved by an order of a magnitude due to combining AOFDM with interference suppression.
284-288
Münster, M.
c7bbba92-827f-4a77-bdc2-fbed67caab36
Keller, T.
41cd2bbf-bf82-4aac-83e9-d585f67f9742
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Münster, M.
c7bbba92-827f-4a77-bdc2-fbed67caab36
Keller, T.
41cd2bbf-bf82-4aac-83e9-d585f67f9742
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Münster, M., Keller, T. and Hanzo, L. (1999) Co-Channel Interference Suppression Assisted Adaptive OFDM in Interference-Limited Environments. VTC'99 (Fall), Netherlands. 19 - 22 Sep 1999. pp. 284-288 .

Record type: Conference or Workshop Item (Paper)

Abstract

This paper investigates the feasibility of Adaptive OFDM (AOFDM) transmissions in co-channel interference limited environments upon invoking the Sample Matrix Inversion (SMI) algorithm. The sub carrier based Signal-to-Noise Ratio (SNR), which can be derived from the SMI algorithm's weights is shown to be in most cases an effective measure for controlling the modulation mode adaptation. A simple pilot based scheme is introduced, which allows channel parameter estimation on an OFDM symbol-by-symbol basis, The system BER performance is shown to be improved by an order of a magnitude due to combining AOFDM with interference suppression.

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More information

Published date: September 1999
Additional Information: Event Dates: 19-22 September 1999 Address: Amsterdam
Venue - Dates: VTC'99 (Fall), Netherlands, 1999-09-19 - 1999-09-22
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 257177
URI: http://eprints.soton.ac.uk/id/eprint/257177
PURE UUID: f9d26040-d66d-4518-be30-e07cba281d56
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 09 Feb 2004
Last modified: 03 Dec 2019 02:06

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Contributors

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

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