943 search results - page 143 / 189 » Compressed channel sensing |
CORR
2010
Springer
13 years 7 months ago
2010
Springer
The problem of distributed learning and channel access is considered in a cognitive network with multiple secondary users. The availability statistics of the channels are initially...
CORR
2008
Springer
13 years 7 months ago
2008
Springer
We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooperati...
JCS
2008
13 years 7 months ago
2008
Randomized protocols for hiding private information can be regarded as noisy channels in the information-theoretic sense, and the inference of the concealed information can be reg...
DB
2007
13 years 7 months ago
2007
More and more businesses are selling products and providing services through multiple channels. 3D virtual worlds are emerging to be one of the channels for companies to communica...
TCOM
2008
13 years 7 months ago
2008
Abstract--This paper addresses the problem of joint optimization of transmit beamforming and space-frequency (SF) coding for MIMO-OFDM systems with spatial correlation feedback in ...