Phase noise compensation for OFDM WLAN systems using superimposed pilots
Date
2006
Authors
Varma, Angiras R
Athaudage, Chandranath R
Andrew, Lachlan L H
Manton, Jonathan
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers (IEEE Inc)
Abstract
In this paper, a novel phase-error estimation technique for OFDM based WLAN system is proposed. The proposed technique utilizes superimposed (or embedded) pilots for phase-tracking within OFDM data packet. This leads to saving transmission bandwidth, which is lost in the conventional phase-error estimation schemes with dedicated pilot subcarriers. Moreover, we propose selective pilot mapping and decision feedback as different strategies of improving the performance of the proposed technique. Simulation results confirm that the proposed technique has a similar symbol error performance to that of conventional scheme, however with the advantage of data-rate increase.
Description
Keywords
Keywords: Communication; Communication systems; Frequency allocation; Frequency division multiplexing; Local area networks; Orthogonal frequency division multiplexing; Wireless local area networks (WLAN); Communications systems; Conventional schemes; Data packets;
Citation
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Source
Tenth IEEE International Conference on Communications Systems
Type
Conference paper