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181
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CISS
2008
IEEE
16 years 1 months ago
2008
IEEE
—We consider a three node network in which a pair of nodes with stochastic arrivals communicate with each other with the help of an intermediate relay. The bi-directional nature ...
199
Voted
ICC
2008
IEEE
16 years 1 months ago
2008
IEEE
— Feedback of channel state information (CSI) enables a multi-carrier transmitter to optimize the power allocation across sub-channels. We consider a single user feedback scheme ...
204
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CISS
2007
IEEE
16 years 1 months ago
2007
IEEE
Relay-based cooperative communications can achieve spatial diversity gains, enhance coverage and potentially increase capacity. If considered for large networks, traditional relayi...
185
Voted
ICC
2007
IEEE
16 years 1 months ago
2007
IEEE
— We propose a joint power- and rate-control scheme to broadcast a multiplicity of video sequences over a broadcast channel. The formulation is intended to be general in scope, w...
219
Voted
ICMCS
2007
IEEE
16 years 1 months ago
2007
IEEE
Query reformulation has been suggested as an effective way to improve retrieval efficiency in text information retrieval and one of the well-known techniques for query reformulati...