Intranet access has become an essential function for corporate users. At the same time, corporation’s security administrators have little ability to control access to corporate ...
Cellular radios consume more power and suffer reduced data rate when the signal is weak. According to our measurements, the communication energy per bit can be as much as 6x highe...
The IEEE 802.11x MAC protocol, the de facto standard for wireless LANs, includes a distributed coordination function (DCF) mode usable for ad hoc network architectures. The Transm...
The Multimedia Internet Terminal (MINT)1 is a flexible multimedia tool set that allows the establishment and control of multimedia sessions across the Internet. The system archit...
In hierarchical distributed systems, shared data access can be controlled by assigning user groups single cryptographic keys that allow high level users derive low level keys, but...