Paper Info
Title
On the Implementation of Blind Interference Alignment with Single-Radio Parasitic Antennas
Abstract
This paper studies the electronically steerable parasitic array radiator (ESPAR) antenna as a solution for beampattern switching to implement blind interference alignment (BIA) [1]. The ESPAR antenna uses a single radio-frequency (RF) chain, and its beamforming is achieved by simply tuning the reactance loads of parasitic elements. Furthermore, ESPAR’s beampattern can be designed to enhance the received signal-to-noise ratio (SNR), thereby improving the performance of BIA. The focus of this work is the design of the ESPAR beampattern to realize and improve BIA. In the first approach, each receiver ESPAR antenna dynamically selects the proper beampatterns from among the sector beampatterns, which are pre-designed to access different angular sectors with constant optimal antenna efficiency. We also propose a singular value decomposition (SVD) beamforming method, by means of the available channel state information at the receiver and a dynamic matching network for a high antenna efficiency. The simulation results illustrate the improvement of BIA with proposed methods, especially in the low and moderate SNR region, due to ESPAR’s beamforming capability.
Year
DOI
Venue
2016
10.1109/TVT.2016.2538565
IEEE Trans. Vehicular Technology
Keywords
Field
DocType
ESPAR,beamforming,blind IA
Beamforming,Computer science,Signal-to-noise ratio,Radio frequency,Electronic engineering,Smart antenna,Directional antenna,Reflective array antenna,Electrical engineering,Interference alignment
Journal
Volume
Issue
ISSN
PP
99
0018-9545
Citations 
PageRank 
References 
1
0.36
7
Authors
2
Name
Order
Citations
PageRank
Rongrong Qian14913.30
Mathini Sellathurai248357.03