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COMCOM
2006
13 years 9 months ago
2006
This paper discusses issues of personalization of presence services in the context of Internet Telephony. Such services take into consideration the willingness and ability of a use...
GLOBECOM
2008
IEEE
14 years 4 months ago
2008
IEEE
Abstract— We present a collaborative algorithm to enable opportunistic spectrum access for cognitive radios in the presence of multiple co-channel transmitters. A spectrum hole d...
PIMRC
2008
IEEE
14 years 4 months ago
2008
IEEE
— In receivers, IQ imbalances have significant effects on the performance of data transmission. Comparison of the performance of different types of Orthogonal Space-Time Block Co...
VTC
2008
IEEE
14 years 4 months ago
2008
IEEE
Spectrum-overlay scenarios for wide-band multi-carrier (MC) systems bring new technical challenges along that must be considered during the system design. In such scenarios, the r...
CRYPTO
2008
Springer
13 years 11 months ago
2008
Springer
In this work we study the design of secure protocols for linear algebra problems. All current solutions to the problem are either inefficient in terms of communication complexity o...