Eusipco 2009, 17th European Signal Processing Conference, August 24-28, 2009, Glasgow, Scotland
K-user frequency-flat MIMO interferenceK-userMIMO interference channel and degree of
Starting from the zero-forcing constraints, some conditions
to be satisfied in order to admit an interference alignment
(IA) solution for any
channel are derived. Our conditions allow for analytical
evaluation of the existence of IA solutions (or lack thereof)
for a given
freedom allocation. We discuss interference alignment duality
and the optimality of linear minimum mean squared error
(LMMSE) interference reduction at the receiver for user rate
maximization. Motivated by this, we suggest an algorithm
for distributed interference alignment in a time division duplex
(TDD) setting.
Type:
Conférence
City:
Glasgow
Date:
2009-08-24
Department:
Systèmes de Communication
Eurecom Ref:
2937
Copyright:
© EURASIP. Personal use of this material is permitted. The definitive version of this paper was published in Eusipco 2009, 17th European Signal Processing Conference, August 24-28, 2009, Glasgow, Scotland
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