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ICC
2007
IEEE
15 years 6 months 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»
15 years 5 months 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
CORR
2008
Springer
155views Education» more  CORR 2008»
14 years 12 months ago
Weighted Sum Rate Optimization for Cognitive Radio MIMO Broadcast Channels
In this paper, we consider a cognitive radio (CR) network in which the unlicensed (secondary) users are allowed to concurrently access the spectrum allocated to the licensed (prim...
Lan Zhang, Yan Xin, Ying-Chang Liang
JSAC
2006
104views more  JSAC 2006»
14 years 11 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
CORR
2007
Springer
86views Education» more  CORR 2007»
14 years 11 months ago
Variations on Information Embedding in Multiple Access and Broadcast Channels
Information embedding (IE) is the transmission of information within a host signal subject to a distortion constraint. There are two types of embedding methods, namely irreversibl...
Shivaprasad Kotagiri, J. Nicholas Laneman