DocumentCode :
1723321
Title :
Antenna selection criteria for interference alignment
Author :
Klotz, Johannes Georg ; Sezgin, Aydin
Author_Institution :
Inst. of Telecommun. & Appl. Inf. Theor., Ulm Univ., Ulm, Germany
fYear :
2010
Firstpage :
527
Lastpage :
531
Abstract :
Antenna selection is a powerful method in order to reduce the complexity of transmission and reception in a multi-antenna system. Interestingly, this method has been considered mostly for point-to-point communication. In this paper, we investigate the impact of different antenna selection criteria on the performance of wireless networks using interference alignment, a transmit strategy which has attracted a lot of interest, in order to improve the performance of wireless interference networks significantly. The selection criteria we consider for antenna selection are based on the properties of the channel such as signal-to-leakage-noise ratio, chordal distance, eigenvalues of the effective channel matrices and receiver side SNR. In order to avoid the exhaustive search needed to obtain the optimal solution we introduce three greedy low complexity selection algorithms. These algorithms perform reasonably well, however there remains a gap to the exhaustive search.
Keywords :
antenna arrays; eigenvalues and eigenfunctions; greedy algorithms; matrix algebra; radio networks; radiofrequency interference; search problems; antenna selection criteria; chordal distance; effective channel matrices; eigenvalues; greedy low complexity selection algorithms; interference alignment; multiantenna system; point-to-point communication; receiver side SNR; reception complexity; signal-to-leakage-noise ratio; transmission complexity; wireless interference networks; Artificial neural networks; Complexity theory; Eigenvalues and eigenfunctions; Signal to noise ratio; Transmitters;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Personal Indoor and Mobile Radio Communications (PIMRC), 2010 IEEE 21st International Symposium on
Conference_Location :
Instanbul
Print_ISBN :
978-1-4244-8017-3
Type :
conf
DOI :
10.1109/PIMRC.2010.5671906
Filename :
5671906
Link To Document :
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