Recent localization research has focused on improving the accuracy of pinpointing the physical location of a target. We think that the energy efficiency and the quality of the loc...
We consider group key agreement (GKA) protocols, used by a group of peers to establish a shared secret key for multicast communications. There has been much previous work to impro...
There is a recent trend toward rule-based authorization systems to achieve flexible security policies. Also, new sensing technologies in pervasive computing make it possible to de...
The Session Initiation Protocol (SIP) has been widely adopted for Instant Messaging (IM) and VoIP telephony both by the enterprise and in service provider systems. Till now, SIP f...
Arup Acharya, Stefan Berger, Chandrasekhar Narayan...
WLAN location estimation based on 802.11 signal strength is becoming increasingly prevalent in today's pervasive computing applications. As alternative to the wellestablished...