DocumentCode :
3663503
Title :
Matching alignment
Author :
Michael Farag;Bobak Nazer
Author_Institution :
ECE Department, Boston University, MA, USA
fYear :
2015
fDate :
6/1/2015 12:00:00 AM
Firstpage :
2832
Lastpage :
2836
Abstract :
The ergodic interference alignment scheme allows each user in a K-user interference channel to attain half its interference-free rate at any signal-to-noise ratio (SNR). However, this comes at the cost of extraordinarily long delays, since each channel matrix must be paired with a complementary matrix that can cancel out its off-diagonal terms. In this paper, we investigate the opposite approach. Rather than waiting for perfect matches, we simply try to pair together the available channel matrices to attain the highest possible sum rate. We show that this problem is closely connected to the problem of maximum weight matching, which allows us to efficiently evaluate the numerical performance of our scheme.
Keywords :
"Interference","Signal to noise ratio","Receivers","Transmitters","Frequency division multiplexing","Gold","Tin"
Publisher :
ieee
Conference_Titel :
Information Theory (ISIT), 2015 IEEE International Symposium on
Electronic_ISBN :
2157-8117
Type :
conf
DOI :
10.1109/ISIT.2015.7282973
Filename :
7282973
Link To Document :
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