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Mobile handset manufacturers are introducing new features that allow a user to configure the same handset for seamless operation with multiple wireless network providers. As the competitiveness in the wireless network service market intensifies, such products will deliver greater freedom for the mobile users to switch providers dynamically for a better price or quality of experience. For example,...
We consider a downlink resource allocation problem for two systems or cells each consisting of a base station and multiple mobile stations. Each cell operates on a protected band for exclusive use and a band shared with the other cell. On simultaneous transmission in the shared band, the two systems disturb one another with interference. The strategies of the systems are their choices of power allocations...
This paper focuses on concurrent real-time multimedia group communication in wireless environment and proposes a video conferencing system to support multiparty streaming video communication on mobile devices. The proposed solution extends session initiation protocol (SIP) to support multicast session negotiation and uses mobile multicast in IP layer for media data distribution. Since wireless network...
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