99 search results - page 12 / 20 » Approximation Hardness and Secure Communication in Broadcast... |
MOBISYS
2004
ACM
15 years 9 months ago
2004
ACM
Wireless data broadcast has received a lot of attention from industries and academia in recent years. Access efficiency and energy conservation are two critical performance concer...
SACMAT
2006
ACM
15 years 3 months ago
2006
ACM
We introduce the concept, model, and policy-specific algorithms for inferring new access control decisions from previous ones. Our secondary and approximate authorization model (...
82
Voted
WICON
2008
14 years 11 months ago
2008
Cognitive Radio (CR) is seen as one of the enabling technologies for realizing a new spectrum access paradigm, viz. Opportunistic Spectrum Sharing (OSS). IEEE 802.22 is the world&...
76
Voted
INFOCOM
2007
IEEE
15 years 3 months ago
2007
IEEE
Abstract— In this paper, we develop and analyze a lowcomplexity cooperative protocol that significantly increases the average throughput of multi-hop upstream transmissions for ...
109
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CISC
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. Despite many good (secure) key agreement protocols based on publickey cryptography exist, secure associations between two wireless devices are often established using sym...