Title
Generalized Eigenvector for Decentralized Transmit Beamforming in the MISO Interference Channel
Abstract
This paper deals with the problem of sum-rate optimal transmit beamforming for the multiple-input-single-output (MISO) interference channel. Under realistic assumptions (i.e. the beamformers are able to decrease the interference power level below the desired signal one), we derive a decentralized beamformer that optimizes the sum-rate. This is of importance since it is known that obtaining the sum-rate optimal transmit beamformer is an NP-hard problem. The design is presented in closed-form and, thus, it is adequate for the future wireless high data rate spectrum-sharing networks due to its low complexity. We evaluate its performance both analytically and numerically. The results show that it behaves well in scenarios with practical level of interference and it outperforms the current decentralized designs when the channel link gains are asymmetric.
Year
DOI
Venue
2013
10.1109/TSP.2012.2231078
IEEE Transactions on Signal Processing
Keywords
Field
DocType
computational complexity
Beamforming,Adaptive beamformer,Wireless,Control theory,Co-channel interference,Communication channel,Interference (wave propagation),Zero-forcing precoding,Precoding,Mathematics
Journal
Volume
Issue
ISSN
61
4
1053-587X
Citations 
PageRank 
References 
3
0.39
14
Authors
4
Name
Order
Citations
PageRank
Miguel Ángel Vázquez15710.21
Ana I. Pérez-Neira240152.50
Miguel Angel Lagunas35413.75
Perez-Neira, A.430.39