Title
Interference alignment via message-passing
Abstract
We introduce an iterative solution to the problem of interference alignment (IA) over MIMO channels based on a message-passing formulation. We propose a parameterization of the messages that enables the computation of IA precoders by a min-sum algorithm over continuous variable spaces - under this parameterization, suitable approximations of the messages can be computed in closed-form. We show that the iterative leakage minimization algorithm of Gomadam et al. is a special case of our message-passing algorithm, obtained for a particular schedule. Finally, we show that the proposed algorithm compares favorably to iterative leakage minimization in terms of convergence speed, and discuss a distributed implementation.
Year
DOI
Venue
2013
10.1109/ICC.2014.6884237
Communications
Keywords
DocType
Volume
MIMO communication,iterative methods,message passing,minimisation,precoding,radiofrequency interference,Gomadam iterative leakage minimization algorithm,IA precoder,MIMO channel,continuous variable space,interference alignment,message parameterization,message passing,min-sum algorithm
Journal
abs/1310.2435
ISSN
Citations 
PageRank 
1550-3607
5
0.43
References 
Authors
6
3
Name
Order
Citations
PageRank
Maxime Guillaud131530.64
Mohsen Rezaee2345.42
Gerald Matz396687.40