Title :
Transmit antenna selection for partial linear precoding MIMO schemes
Author :
Masouros, Christos ; Alsusa, Emad
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Manchester, Manchester
Abstract :
A novel transmit antenna selection technique is proposed, specifically designed to maximise the benefit of partial precoding on narrowband downlink multiuser multiple input multiple output (MU-MIMO) systems employing antenna redundancy. The partial precoding utilises the constructive part of the existing interference between the MIMO sub-channels by applying partial sub-channel orthogonalisation and thus improves the signal-to-noise ratio at the receiver. In addition, a customised antenna selection criterion is employed at the transmitter, that maximises the constructive interference among the active antennas and optimises the benefits of partial precoding.
Keywords :
MIMO communication; antennas; interference (signal); precoding; radio links; radio transmitters; wireless channels; antenna redundancy; constructive interference; customised antenna selection criterion; narrowband downlink multiuser multiple input multiple output systems; partial linear precoding; partial subchannel orthogonalisation; signal-to-noise ratio; transmit antenna selection; transmitter;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2009.0330