NDLI: Antenna competition to boost Active Interference Cancellation in cognitive MIMO-OFDM

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Proceedings of the 2000 IEEE Sensor Array and Multichannel Signal Processing Workshop. SAM 2000 (Cat. No.00EX410)

Antenna competition to boost Active Interference Cancellation in cognitive MIMO-OFDM

Content Provider	IEEE Xplore Digital Library
Author	Schmidt, J.F. Lopez-Valcarce, R.
Copyright Year	2014
Description	Author affiliation: Dept. of Signal Theor. & Commun., Univ. of Vigo, Vigo, Spain (Schmidt, J.F.; Lopez-Valcarce, R.)
Abstract	Active Interference Cancellation (AIC) techniques for OFDM spectrum sculpting have gained interest over the last years, and several extensions to the MIMO case have been recently proposed. However, these designs do not fully exploit the spatial diversity provided by the multiple transmit antennas, as canceler allocation is fixed. This paper proposes a more general mechanism for the allocation of the cancellation subcarriers across antennas in order to better exploit spatial diversity. In particular, we present a novel AIC design for cognitive MIMO-OFDM systems, in which transmit antennas compete against each other for a fixed number of cancellation subcarriers. We show that this more general allocation approach results in significant performance improvements with respect to previous designs.
Starting Page	269
Ending Page	272
File Size	778932
Page Count	4
File Format	PDF
ISBN	9781479914814
ISSN	2151870X
DOI	10.1109/SAM.2014.6882392
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-06-22
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	MIMO OFDM Transmitting antennas Next generation networking Indexes
Content Type	Text
Resource Type	Article

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