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ICC
2007
IEEE
120views Communications» more  ICC 2007»
14 years 1 months ago
Multiuser MIMO Downlink Transmission Over Time-Varying Channels
—— The performance of multiuser MIMO downlink systems with block diagonalization (BD) relies on the channel state information (CSI) at the transmitter to a great extent. For ti...
Kai Zhang, Zhisheng Niu
TCOM
2008
136views more  TCOM 2008»
13 years 7 months ago
Cross-layer adaptive transmission with incomplete system state information
We consider a point-to-point communication system in which data packets randomly arrive to a finite-length buffer and are subsequently transmitted to a receiver over a timevarying ...
Anh Tuan Hoang, Mehul Motani
JSAC
2007
98views more  JSAC 2007»
13 years 7 months ago
Optimum Power Allocation for Single-User MIMO and Multi-User MIMO-MAC with Partial CSI
Abstract— We consider both the single-user and the multiuser power allocation problems in MIMO systems, where the receiver side has the perfect channel state information (CSI), a...
Alper Soysal, Sennur Ulukus
ICC
2009
IEEE
111views Communications» more  ICC 2009»
13 years 5 months ago
On the Capacity of Bidirectional Broadcast Channels under Channel Uncertainty
We consider the broadcast phase of a spectrally efficient two-phase decode-and-forward protocol which is used by a relay node to establish a bidirectional communication between two...
Rafael F. Wyrembelski, Igor Bjelakovic, Tobias J. ...
ICC
2007
IEEE
103views Communications» more  ICC 2007»
14 years 1 months ago
On the Sum-Rate of Opportunistic Beamforming Schemes with Multiple Antennas at the Receiver
Abstract— The capacity region of Gaussian Multi-InputMultiple-Output (MIMO) broadcast channels has been shown to be achieved by dirty paper coding (DPC). However, due to the high...
Renato G. Bosisio, Umberto Spagnolini