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The opportunistic grassmanian beamforming for multiuser and multiantenna downlink communications

Autor
Nizar, Z.; Perez, A.
Tipus d'activitat
Article en revista
Revista
IEEE transactions on wireless communications
Data de publicació
2009-04
Volum
7
Número
4
Pàgina inicial
1174
Pàgina final
1178
DOI
https://doi.org/10.1109/TWC.2008.060972 Obrir en finestra nova
URL
http://ieeexplore.ieee.org/document/4489742/ Obrir en finestra nova
Resum
Scheduling in a broadcast channel based on partial channel-state-information at the transmitter is carried out in an opportunistic way. In this paper, the number of generated beams is larger than the number of available base station antennas, where the beams are obtained through Grassmannian line packing to guarantee the largest orthogonality among them. Approximate expressions and bounds are derived for the sum capacity of the proposed approach together with its scaling law. For practical syste...
Paraules clau
Array signal processing, Base stations, Broadcasting, Coherence, Downlink, MIMO, Receiving antennas, Signal to noise ratio, Transmitters, Transmitting antennas
Grup de recerca
A&MP - Grup de Processament d'Arrays i Sistemes Multicanal

Participants