User admission in MIMO interference alignment networks

Behrang Nosrat-Makouei, Jeffrey G. Andrews, Robert W. Heath
2011 2011 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)  
In this paper we consider an interference channel where a set of primary active users are cooperating through interference alignment over a constant multiple-input-multiple-output channel while a set of secondary users desire access to the channel. We present the conditions under which a secondary user can be admitted to the network. For the admitted users, we derive several beamforming designs maximizing approximately the secondary users' sum-rate based on the number of the secondary users,
more » ... number of antennas at the secondary users and the total number of streams in the network of active users.
doi:10.1109/icassp.2011.5947105 dblp:conf/icassp/Nosrat-MakoueiAH11 fatcat:ymoyrr6rqjem7msj5b3aimjyvq