Paper Info
Title
Performance of the blind interference alignment using ESPAR antennas
Abstract
Recently, a technique entitled “Blind Interference Alignment (BIA)” was proposed, which allows interference alignment to be achieved without the knowledge of channel state information at the transmitter. The key to realizing the BIA scheme is the use of a receive antenna capable of switching among multiple beampatterns. The ESPAR antenna, which uses only a single RF front-end, is capable of forming different directional beampatterns by the use of circular permutations of the reactive loads of the passive elements. We introduce the ESPAR antenna as a potential solution for the practical implementation of the BIA for broadcast channel as well as cellular. The BIA scheme is accomplished by the transmission strategy jointly coordinating with the ESPAR beampattern switching symbol-wise. The ESPAR beampattern switching provides the necessary channel diversity for receiving users. Simulation results demonstrate that the ESPAR beam steering can be designed to improve the performance of the BIA scheme by enhancing the receive signal-to-noise ratio (SNR). Furthermore, we study the proposed BIA scheme for a simple 1-dimensional cellular setting to illustrate that the ESPAR beamforming can improve the performance of the cell-edge users through further suppressing the remaining inter-cell interference.
Year
DOI
Venue
2013
10.1109/ICC.2013.6655350
ICC
Keywords
Field
DocType
channel state information,directional beampattern,circular permutation,broadcast channel,espar beam steering,cellular radio,bia scheme,cellular,reactive load,antenna arrays,rf front-end,array signal processing,espar,blind interference alignment,espar beampattern switching symbol-wise,passive element,intercell interference,snr,interference suppression,espar antenna,channel diversity,cellular channel,mimo,transmission strategy,signal-to-noise ratio,interference,signal to noise ratio,switches,rf front end,vectors
Beamforming,Transmitter,Telecommunications,Computer science,MIMO,Beam steering,Communication channel,Real-time computing,Electronic engineering,Interference (wave propagation),Interference alignment,Channel state information
Conference
ISSN
Citations 
PageRank 
1550-3607
5
0.61
References 
Authors
3
2
Name
Order
Citations
PageRank
Rongrong Qian14913.30
Mathini Sellathurai248357.03