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IETF proposed Hierarchical Mobile IPv6 (HMIPv6) to support host mobility and mobility management involves signaling costs at various mobility entities of the network. Widespread use of IP-enabled mobile devices have resulted in increase in number of mobile users and the signaling cost on underlying mobility entities have increased significantly, which will result in their performance degradation....
There are several radio access technologies providing connectivity for mobile devices. In the future, more and more mobile devices will be capable of supporting more than one access technology. For being able to use these technologies simultaneously, there is a need for multihoming capabilities. Due to the variety of access technologies and the ability to use them simultaneously, new concepts for...
This paper proposes a new approach for reducing average call delivery cost and location server's load of wireless mobile networks. It uses caches whose up-todate information is responsible for dropping these costs and these caches are updated not only during call arrival moment from the calling mobile hosts (MHs) but also during call receiving moment to those MHs. To achieve load balancing among replicated...
Information sharing in dynamic mobile ad-hoc networks is a challenging task. High data availability in the presence of short and long term disconnections can be obtained by replicating shared data. The number of replicas must however be balanced against the cost of consistency management. In the MIDAS Data Space (MDS) we use optimistic replication together with internal versioning of data; this allows...
With mobile terminals and wireless network environment constantly being improved, people are using mobile instant messaging (IM) products more frequently. We provide a novel design based on Jabber and FCAPS model to meet the rapidly growing and changing needs. Jabber provides an open, secure, real-time communication technology. Network management has always been a key aspect of communication networks...
In order to make use of the PC's ability of processing, management and storage, and implement the management of the mobile phone by the PC, this paper proposes the design method of mobile phone management software based on component technology. Using VC6.0 as the development platform, based on windows serial communication, AT commands, we implemented control to the mobile phone and synchronous transfer...
Efficiently self organizing the network databases with respect to relationships amongst users or between a user and a data object is an important and a challenging problem. A layer of abstraction by describing relationship patterns is defined to model user relationships and to develop group clusters. This information along with attributes of involved users is used to extract and monitor existing and...
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