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ICC
2007
IEEE
16 years 21 days ago
Trade-Offs of Spatial Gain for QoS-Guaranteed Services in the MIMO Broadcast Channels
— Although the capacity of multiple-input multiple output (MIMO) broadcast channels (BCs) can be achieved by dirty-paper coding (DPC), it is difficult to apply the results direct...
Seung Hwan Lee, John S. Thompson
VTC
2006
IEEE
152views Communications» more  VTC 2006»
16 years 11 days ago
Cross-Layer Resource Allocation via Geometric Programming in Fading Broadcast Channels
Abstract— In a fading broadcast channel (BC), Queue Proportional Scheduling (QPS) is presented via geometric programming (GP). Given the current queue state, QPS allocates a data...
Kibeom Seong, Ravi Narasimhan, John M. Cioffi
PET
2004
Springer
15 years 11 months ago
Anonymity and Covert Channels in Simple Timed Mix-Firewalls
Traditional methods for evaluating the amount of anonymity afforded by various Mix configurations have depended on either measuring the size of the set of possible senders of a p...
Richard E. Newman, Vipan R. Nalla, Ira S. Moskowit...
JSAC
2006
104views more  JSAC 2006»
15 years 6 months ago
Queue Proportional Scheduling via Geometric Programming in Fading Broadcast Channels
For fading broadcast channels (BC), a throughput optimal scheduling policy called queue proportional scheduling (QPS) is presented via geometric programming (GP). QPS finds a data ...
Kibeom Seong, Ravi Narasimhan, John M. Cioffi
JCM
2007
162views more  JCM 2007»
15 years 6 months ago
Opportunistic Spectrum Access in Fading Channels Through Collaborative Sensing
— Spectrum scarcity is becoming a major issue for service providers interested in either deploying new services or enhancing the capacity for existing applications. On the other ...
Amir Ghasemi, Elvino S. Sousa