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The wireless ubiquitous network and various communication services are expected to be realized. The wireless ubiquitous network is defined as the converged network to integrate the mobile network with the fixed IP based network. First, the concept of wireless ubiquitous network architecture is shown which is based on IMS standardized by 3GPP. Next, Parlay is described as the solution of Open API approach...
The increasing request for mobile multimedia services have motivated relevant standardization efforts, such as the IP multimedia system (IMS) to support session control, mobility, and interoperability in all-IP next generation wireless networks. Notwithstanding their increasing diffusion, IMS solutions still exhibit limited support for service scalability, especially for data intensive services such...
A project of mobile value-added service based on P2P is proposed. In this project, wireless devices can build a P2P network dynamically and they can access and transmit information point to point. The idea will adapt to the 3G wireless network and it will become a effective solution for mobile value-added services on 3G. Utilizing JXTA and J2ME, a platform based the project is realized. The module...
The next generation wireless mobile network will be a heterogeneous networking environment consisting of various networks with heterogeneous implementations. Discovering and selecting the optimal networks for delivering an end-to-end networking service has significant impact on the service quality offered to applications. One of the main challenges to network discovery and selection is the heterogeneity...
Wireless data broadcasting is an effective way for provisioning Location Based Services (LBSs) due to its beneficial characteristics, such as bandwidth-efficiency and scalability. An important functionality of LBSs is to process spatial queries such as range queries and k-Nearest Neighbor (k-NN) queries. In this paper, we explore the problem of processing the generalized spatial queries, which involve...
On-demand broadcast is an efficient wireless data dissemination method for mobile services.As the rapid growth of the mobile application,there is an increasing need for system to support large data dissemination.This paper investigates wireless on-demand broadcast algorithms.We propose a new scheduling algorithm called FMT(Fluent Media Transfer) which takes the flux of program,the program size,request...
Location based services is considered as a killer application in the wireless data market that provide information based on locations specified in the queries. We consider wireless data broadcasting as a way of disseminating information to a massive number of users. To address the issues of responsiveness, energy consumption and bandwidth contention in wireless communications, an index has to minimize...
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