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Reconfigurable antennas and link adaptation algorithms for MIMO-OFDM wireless systems
Journal article   Open access   Peer reviewed

Reconfigurable antennas and link adaptation algorithms for MIMO-OFDM wireless systems

George D. Sworo, Kapil R. Dandekar and Moshe Kam
EURASIP journal on wireless communications and networking, v 2015(1), pp 1-15
06 Jun 2015
DOI: https://doi.org/10.1186/s13638-015-0390-6
url
https://doi.org/10.1186/s13638-015-0390-6View
Published, Version of Record (VoR)CC BY V4.0,  Open

Abstract

Engineering Engineering, Electrical & Electronic Science & Technology Technology Telecommunications
In this work, we study and analyze the performance of physical layer algorithms for adaptive multiple input-multiple output orthogonal frequency-division multiplexing (MIMO-OFDM) wireless systems that employ a new class of adaptive antenna systems known as reconfigurable antennas. These antennas are capable of adaptively modifying their radiation characteristics and thus leverage pattern diversity to affect how the transmitter and receiver perceive the wireless channel. We propose a low complexity spatial adaptive modulation and coding (AMC) algorithm that uses the advantages of pattern reconfigurable antennas in concert with link adaptation to improve MIMO-OFDM link throughput. The algorithm operates in two main stages; first, it searches for the antenna configuration that yields the highest post processing signal-to-noise ratio (ppSNR) and, then, applies AMC to improve spectral efficiency. The performance of the proposed scheme is experimentally evaluated for a 2x2 MIMO-OFDM wireless system in an indoor environment.

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3 citations in Web of Science
5 citations in Scopus

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Collaboration types
Domestic collaboration
Web of Science research areas
Engineering, Electrical & Electronic
Telecommunications
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