Paper Info
Title
Least squares approach to joint beam design for interference alignment in multiuser multi-input multi-output interference channels
Abstract
In this correspondence, the problem of interference alignment for K -user time-invariant multi-input multi-output interference channels is considered. The necessary and sufficient conditions for interference alignment are converted to a system of linear equations that have dummy variables. Based on this linear system, a new algorithm for beam design for interference alignment is proposed by minimizing the overall interference misalignment. The proposed algorithm consists of solving a least squares problem iteratively. The convergence of the proposed algorithm is established, and its complexity is analyzed. The performance of the proposed algorithm is also evaluated numerically. It is shown that the proposed algorithm has faster convergence and lower complexity than the previous method with a comparable sum rate performance in the most practical case of two receive antennas.
Year
DOI
Venue
2010
10.1109/TSP.2010.2051155
IEEE Transactions on Signal Processing
Keywords
Field
DocType
algorithm design and analysis,iterative algorithm,least squares,convergence,least square,multi user mimo,linear system,linear equations,linear systems,mimo
Least squares,Mathematical optimization,Algorithm design,Multi-user MIMO,System of linear equations,Linear system,Iterative method,Control theory,Interference (wave propagation),Rate of convergence,Mathematics
Journal
Volume
Issue
ISSN
58
9
1053-587X
Citations 
PageRank 
References 
54
2.23
6
Authors
2
Name
Order
Citations
PageRank
Heejung Yu115422.19
Youngchul Sung262145.85