Paper Info
Title
Interference channel sum rate optimization on the Grassmann manifold
Abstract
The problem of truncated unitary precoder design for the Multiple-Input Multiple-Output Interference Channel (MIMO-IC) is investigated. A simple gradient ascent method is utilized over the Grassmann manifold to maximize the sum rate achieved over the MIMO-IC. Since such optimization methods are not guaranteed to converge to the global solution, we also introduce an implementation of simulated annealing for the problem at hand and compare the performance of the two methods. The results show that the gradient on the Grassmann manifold provides gains over existing methods such as max-SINR, in particular when asymmetric channels are considered and the achieved performance is comparable to that achieved by more complex methods not restricted to unitary constraints. Furthermore it performs close to the simulated annealing method at low SNR regime.
Year
DOI
Venue
2012
10.1109/ISWCS.2012.6328432
Wireless Communication Systems
Keywords
Field
DocType
MIMO communication,channel coding,precoding,radiofrequency interference,simulated annealing,wireless channels,Grassmann manifold,MIMO-IC,asymmetric channels,gradient ascent method,interference channel sum rate optimization,max-SINR,multiple-input multiple-output interference channel,optimization methods,simulated annealing,sum rate,truncated unitary precoder design
Simulated annealing,Topology,Mathematical optimization,Gradient descent,Signal-to-noise ratio,Real-time computing,Interference (wave propagation),Linear programming,Grassmannian,Zero-forcing precoding,Mathematics,Precoding
Conference
ISSN
ISBN
Citations 
2154-0217 E-ISBN : 978-1-4673-0760-4
978-1-4673-0760-4
2
PageRank 
References 
Authors
0.37
8
2
Name
Order
Citations
PageRank
Mohsen Rezaee1345.42
Maxime Guillaud231530.64