1517 search results - page 71 / 304 » Time and Location Based Services with Access Control |
IFIPTM
2010
13 years 7 months ago
2010
Abstract. Location-dependent services are services that adapt their behavior based on the locations of mobile devices. For many applications, it is critical that location-dependent...
TRIDENTCOM
2005
IEEE
14 years 2 months ago
2005
IEEE
This paper introduces an open access wideband multiantenna wireless testbed. The testbed is configured as a four transmit antenna by four receive antenna system based on software...
COMPSAC
2004
IEEE
14 years 16 days ago
2004
IEEE
Considering the solution of dynamic access problems in a user hierarchy, a novel scheme based on one-way hash function is proposed to manage the cryptographic keys in the paper. T...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— In this paper, we consider the queueing performance of a subscriber station for IEEE802.16e random access protocol with bulk transmissions which is allowed with an ARQ protocol...
IASTEDSE
2004
13 years 10 months ago
2004
The existence of a central security authority is too restrictive for pervasive computing environments. Existing distributed security schemes fail in a pervasive computing environm...