Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 14 of 14 for “"All-IP"”.
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Medium access control design for all-IP and ad hoc wireless network
… management and QoS support for applications. All-IP wireless WAN is fully IP protocol-based and it is a strong candidate beyond 3G (Third Generation Wireless Network). Ad hoc wireless network has recently been the topic of extensive research due to its ability to work properly without fixed …
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Integrated Mobility and Service Management for Future All-IP Based Wireless Networks
… and service management schemes for future all-IP based wireless systems. We propose and analyze per-user regional registration schemes extending from Mobile IP Regional Registration and Hierarchical Mobile IPv6 for integrated mobility and service management with the goal to minimize the …
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A cross-layer mobility management framework for next-generation wireless roaming
… framework for advanced mobility algorithms that allows the challenges of next-generation roaming to be met. The framework features tools that gather context and content information, guarantee low-level QoS, provide security, and offer link and handoff management. The framework aims to be scalable …
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A vulnerability assesment framework for the IMS
… platform for each new type of service. The IP multimedia subsystem (IMS) aims to provide a unified service delivery platform capable of supporting a wide range of multimedia, data and voice services. It has been developed with a focus on content delivery and rich communications, and has …
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Interactive gaming application servicefor the UCT IMS network
… Until recently, interactive games have generally been restricted to solitary access networks. In other words, games have to be played on similar systems. The IP Multimedia Subsystem is designed to help with the convergence of different access networks by creating an all IP based network. In …
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Multimedia session continuity in the IP multimedia subsystem : investigation and testbed implementation
The advent of Internet Protocol (IP) based rich multimedia services and applications has seen rapid growth and adoption in recent years, with an equally increasing user base. Voice over IP (VoIP) and IP Television (IPTV) are key examples of services that are blurring the lines between traditional …
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Seamless video handoff in session mobility over the IMS network
… and the opportunity to employ the capacities of all devices in the user's environment. Such ubiquity of service can be realized by session mobility between devices. Providing seamless handoff in session mobility is a challenging, and vital, issue relating to the heterogeneous next generation …
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Ultrawideband IEEE802.15.4a Cognitive Localization Methods for the 5G Environment
… 250Mbps wi-fi standards respectively. Additionally, the cluster cooperation method achieves multi-user access rate of over 485% above cellular network standards. Also proposed is the ULOSTECH D2D-propagation-based combined localization and communication scheme (UD-CLOCS) for ultra-dense …
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Μελέτη μεθόδων ασφαλούς μετάδοσης πολυμέσων σε σύγχρονα ασυρματικά δίκτυα
… της μετάδοσης πακέτων σε ασύρματα All-IP δίκτυα. Από την άλλη μεριά, μελετήθηκαν οι σύγχρονοι μηχανισμοίγ ια την υποστήριξη ασφαλών και διαφανών υπηρεσιών πολυμέσων με ϐάση τους παραπάνω μηχανισμούς ϐελτιστοποίησης. Στα πλαίσια της διατριβής μελετήθηκαν και αναπτύχθηκαν μηχανισμοί …
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Network-based IP flow mobility support in 3GPPs evolved packet core
… as a candidate solution to enable MNOs to alleviate congestion from the cellular networks. This dissertation investigates an offloading technique called IP flow mobility within the 3rd Generation Partnership Project (3GPP) all-IP mobile core network, the Evolved Packet Core (EPC). IP flow …
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Linking session based services with transport plane resources in IP multimedia subsystems.
… operators to recognise the benefits of an IP-based communications framework. The IP Multimedia Subsystem (IMS) has been proposed as a candidate technology to provide a non-disruptive strategy in the move to all-IP and to facilitate the true convergence of data and real-time multimedia …
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Contribución al soporte de aplicaciones multimedia multiusuario de alta interactividad en el subsistema IP multimedia
… servicios (presencia, predisposición a participar en actividades, etc.) y gestión de las comunicaciones (establecimiento de sesiones multiusuario, notificación de eventos, soporte de múltiples dispositivos, gestión del estado, calidad de servicio en la red, etc.). Todas estas funciones deben …
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Cognitive Gateway to Promote Interoperability, Coverage and Throughput in Heterogeneous Communication Systems
… the trend that dynamic spectrum access (DSA) is allowed and will be gradually employed, cognition and cooperation form a promising framework to achieve the ideality of seamless ubiquitous connectivity in future communication networks. In this dissertation, the cognitive gateway (CG), conceived as …
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Dual regulation of inositol 1,4,5-trisphosphate receptors by inositol 1,4,5-trisphosphate and phosphatidylinositol 4,5-bisphosphate
… Inositol 1,4,5-trisphosphate receptors (IP<sub>3</sub>Rs) are key signal integrators, which transform extracellular stimuli into intracellular Ca<sup>2+</sup> signals. Only immobilised IP<sub>3</sub>Rs, licensed by association with KRas-induced actin-interacting protein (KRAP), can …