231 search results - page 45 / 47 » Generalized Identity Based and Broadcast Encryption Schemes |
ICC
2007
IEEE
13 years 11 months ago
2007
IEEE
Abstract-- This paper concerns the multiple access performance of spreading codes used in the downlink of multicarrier code-division multiple-access (MC-CDMA). Complex-valued sprea...
DISOPT
2008
13 years 7 months ago
2008
We introduce a general technique to create an extended formulation of a mixed-integer program. We classify the integer variables into blocks, each of which generates a finite set ...
TIT
2008
13 years 7 months ago
2008
The problem of computing functions of values at the nodes in a network in a fully distributed manner, where nodes do not have unique identities and make decisions based only on loc...
WWW
2005
ACM
14 years 8 months ago
2005
ACM
Large web search engines have to answer thousands of queries per second with interactive response times. Due to the sizes of the data sets involved, often in the range of multiple...
WPES
2003
ACM
14 years 23 days ago
2003
ACM
Mix networks are used to deliver messages anonymously to recipients, but do not straightforwardly allow the recipient of an anonymous message to reply to its sender. Yet the abili...