Results 61 to 70 of about 1,397 (129)

On the Fundamental Feedback-vs-Performance Tradeoff over the MISO-BC with Imperfect and Delayed CSIT

open access: yes, 2013
This work considers the multiuser multiple-input single-output (MISO) broadcast channel (BC), where a transmitter with M antennas transmits information to K single-antenna users, and where - as expected - the quality and timeliness of channel state ...
Chen, Jinyuan, Elia, Petros, Yang, Sheng
core   +3 more sources

Retrospective Interference Alignment for the 3-user MIMO interference channel with delayed CSIT [PDF]

open access: yes2014 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2014
Draft version of the accepted manuscript at IEEE ICASSP ...
Torrellas Socastro, Marc   +2 more
openaire   +3 more sources

Outage Probability of Multiple-Input Single-Output (MISO) Systems with Delayed Feedback

open access: yes, 2007
We investigate the effect of feedback delay on the outage probability of multiple-input single-output (MISO) fading channels. Channel state information at the transmitter (CSIT) is a delayed version of the channel state information available at the ...
Annpureddy, Venkata Sreekanta   +3 more
core   +3 more sources

Precoding Methods for MISO Broadcast Channel with Delayed CSIT

open access: yes, 2012
Recent information theoretic results suggest that precoding on the multi-user downlink MIMO channel with delayed channel state information at the transmitter (CSIT) could lead to data rates much beyond the ones obtained without any CSIT, even in extreme situations when the delayed channel feedback is made totally obsolete by a feedback delay exceeding ...
Yi, Xinping, Gesbert, David
openaire   +2 more sources

The DoF of Network MIMO with Backhaul Delays

open access: yes, 2012
We consider the problem of downlink precoding for Network (multi-cell) MIMO networks where Transmitters (TXs) are provided with imperfect Channel State Information (CSI).
de Kerret, Paul   +2 more
core   +1 more source

The two-hop MISO broadcast network with quantized delayed CSIT

open access: yes2013 IEEE Wireless Communications and Networking Conference (WCNC), 2013
We consider a downlink two-hop MISO broadcast network with a 2-antenna source communicating to 2 single-antenna destinations, assisted by 2 single-antenna intermediate relays. We investigate spectrally efficient transmission schemes and their achieved sum degrees of freedom (DoF), with quantized delayed channel state information (CSI) feedback ...
Zhao, Wang   +3 more
openaire   +3 more sources

On SDoF of Multi-Receiver Wiretap Channel With Alternating CSIT

open access: yes, 2016
We study the problem of secure transmission over a Gaussian multi-input single-output (MISO) two receiver channel with an external eavesdropper, under the assumption that the state of the channel which is available to each receiver is conveyed either ...
Awan, Zohaib Hassan   +2 more
core   +3 more sources

Outage-based ergodic link adaptation for fading channels with delayed CSIT

open access: yes, 2012
Link adaptation in which the transmission data rate is dynamically adjusted according to channel variation is often used to deal with time-varying nature of wireless channel.
Bae, Jung Hyun   +2 more
core   +1 more source

Retrospective Interference Alignment

open access: yes, 2010
We explore similarities and differences in recent works on blind interference alignment under different models such as staggered block fading model and the delayed CSIT model.
Jafar, Syed A.   +2 more
core   +1 more source

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