A causal multicast protocol for dynamic groups in cellular networks
Proceedings of the 2008 Euro American Conference on Telematics and Information Systems
Evaluation of an information service for enhanced multiaccess media delivery
Proceedings of the 5th International ICST Mobile Multimedia Communications Conference
Distributed information service architecture for overlapping multiaccess networks
Multimedia Tools and Applications
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Advances in wireless network technology and theincreasing use of number of handheld mobile devicesmake many services and applications necessary to beoffered to mobile users. An event notification service(ENS) system is an extremely useful communicationservice for those applications. Therefore, it becomesnecessary to extend ENS system to a mobile environment.A distributed ENS system is an asynchronous systemconsisting of several subsystems, namely, producerclients, consumer clients and servers without commonmemory and global clock. The subsystems communicateeach other by sending messages with unpredictabletransmission delays causing unordered propagation ofmessages. In this paper we describe a model of ENSsystem for mobile environment. Then we present a causalordering algorithm of ENS systems for mobileenvironment.