99 search results - page 4 / 20 » Approximation Hardness and Secure Communication in Broadcast... |
CN
2010
13 years 7 months ago
2010
Technological evolution is leading telecommunications to all-IP networks where multiple services are transported as IP packets. Among these are the group communications services w...
VTC
2006
IEEE
14 years 2 months ago
2006
IEEE
— In this paper we compare the following two methods of transmit precoding for the multiple antenna broadcast channel: vector perturbation applied to channel inversion (also term...
ICDCS
2010
IEEE
14 years 17 days ago
2010
IEEE
—Wireless communication is particularly vulnerable to signal jamming attacks. Spread spectrum mitigates such problem by spreading normal narrowband signals over a much wider band...
CRYPTO
2005
Springer
14 years 2 months ago
2005
Springer
Broadcast encryption schemes allow a message sender to broadcast an encrypted data so that only legitimate receivers decrypt it. Because of the intrinsic nature of one-to-many comm...
INFOCOM
1998
IEEE
14 years 27 days ago
1998
IEEE
We present the Informed-Source Coding-On-Demand (ISCOD) approach for efficiently supplying non-identical data from a central server to multiple caching clients through a broadcast ...