IMS - Mobile Server Platform : the foundation of mobile-to-mobile service networks for future cellular systems
Aachen (2017) [Dissertation / PhD Thesis]
Page(s): 1 Online-Ressource (xv, 168 Seiten) : Illustrationen, Diagramme
The unprecedented growth of mobile application market is the evidence of twofold technological advancement in the wireless world: first, the enormous increase in the capacity of mobile networks and second, the rapid increase in the computing powers of mobile devices. The former has enabled the network operators to ensure quality of service on their network by inducing more capacity for seamless data transmissions. Whereas, the latter has contributed in the novel space of mobile server paradigm, where the mobile devices are assumed to have sufficient computing power of hosting and distributing small and medium-sized data services among the peers on the network. Nevertheless, considering the mobile server paradigm or peer-to-peer mobile applications, the availability of such applications are mostly limited to WiFi and Wireless Local Area Networks (WLAN) only and, hence, not available for cellular data networks. There are various technical and political reasons behind this phenomena. The dissertation deals with the standardized provisioning of mobile applications on cellular data networks and addresses the issues related to it. A novel concept of Mobile-to-Mobile service networks is presented in this regard and a prototypical implementation of an IMS (IP Multimedia Subsystem) interfaced Mobile Server Platform (MSP) is provided to enable multimedia communication among the peers. The IMS was originally introduced by 3GPP to support heavy multimedia communication over 3G cellular network, which has now become an application layer standard for 4G / LTE-Evolved Packet Core network. From the architectural point of view, the MSP is mainly categorized into three different logical frameworks. First, the Multimedia Messaging Framework is introduced in order to realize the mobile-to-mobile text messaging and multimedia file sharing features in a service oriented fashion over the operator IMS network. The proposed framework conforms to the functional and non-functional requirements of the Instant Messaging (IM) service addressed by 3GPP. Second, the Multimedia Streaming Framework is introduced in order to support the mobile-to-mobile multimedia sessions in a service oriented fashion over the operator IMS network. The SIP and SDP are the main protocols used for the session establishment process of the streaming applications, whereas, the RTP and RTSP protocols are proposed to provision standardized multimedia transmissions and achieve remote control streaming features on top. Third, a comprehensive QoS Framework is introduced to provide an efficient control of ongoing multimedia sessions according to the Policy and Charging Control (PCC) mechanism devised by the 3GPP. The performance evaluation and mathematical models of File Transfer Time (FTT) and Video Streaming Time (VST) are presented for different network conditions and for various types of user profiles.
Chaudhary, Muzzamil Aziz