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16 April 2024 |
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Experimental Evaluation of a Reconfigurable Antenna System for Blind Interference Alignment | | Simon Begashaw
; James Chacko
; Nikhil Gulati
; Danh H. Nguyen
; Nagarajan Kandasamy
; Kapil R. Dandekar
; | | Date: |
30 Mar 2016 | | Abstract: | In recent years, several experimental studies have come out to validate the
theoretical findings of interference alignment (IA), but only a handful of
studies have focused on blind interference alignment. Unlike IA and other
interference mitigation techniques, blind IA does not require channel state
information at the transmitter (CSIT). The key insight is that the transmitter
uses the knowledge of channel coherence intervals and receivers utilize
reconfigurable antennas to create channel fluctuations exploited by the
transmitter. In this work, we present a novel experimental evaluation of a
reconfigurable antenna system for achieving blind IA. We present a blind IA
technique based on reconfigurable antennas for a 2-user multipleinput
single-output (MISO) broadcast channel implemented on a software defined radio
platform where each of the receivers is equipped with a reconfigurable antenna.
We further compare this blind IA implementation with traditional TDMA scheme
for benchmarking purposes. We show that the achievable rates for blind IA can
be realized in practice using measured channels under practical channel
conditions. Additionally, the average error vector magnitude and bit error rate
(BER) performances are evaluated. | | Source: | arXiv, 1603.8987 | | Services: | Forum | Review | PDF | Favorites | |
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