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 20 of 52 for “"Multimedia services"”.
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Session Management for Accountability in Distributed Multimedia Services
Internet-based multimedia applications (e.g., voice-over-IP, instant messaging, and video conferencing) are continuing to grow in importance as more people depend on such applications for personal and professional communications. Although performance is almost always a concern with multimedia …
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Support infrastructures for multimedia services with guaranteed continuity and QoS
… scenarios where a growing number of users access multimedia services, e.g., audio/video streaming, while moving among different points of attachment to the Internet, possibly with different connectivity technologies, e.g., Wi-Fi, Bluetooth, and cellular 3G. That calls for novel middlewares capable …
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Opportunistic transmission scheduling for next generation wireless communication systems with multimedia services
… the continued dramatic increase for all wireless services are fueling the demand for increased capacity, data rates, and support of different quality of service (QoS) requirements for different classes of services. Since in the current and future wireless communication infrastructures, the …
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Performance analysis and resource allocation in CDMA wireless networks for multimedia services
… of Internet and demand for wireless services necessitate large increases in capacity and data rates in order to support different multimedia services. Wireless systems will be required to support sources with a variety of traffic characteristics and quality of service requirements. …
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A SIP intergrated web browser for HTTP session mobility and multimedia services
Web session migration is one way of improving web-browsing experience. Other ways include bookmarking and web history synchronization. This project introduces a new service to web browsing namely, Session Handoff and Content Sharing. The service requires extending the capabilities of existing web …
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A quality of service architecture for WLAN-wired networks to enhance multimedia support
The use of WLAN for the provision of IP multimedia services faces a number of challenges which include quality of service (QoS). Because WLAN users access multimedia services usually over a wired backbone, attention must be paid to QoS over the integrated WLAN-wired network. This research focuses …
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Differential Radio Link Protocol: An Improvement To Tcp Over Wireless Networks
… more mobile users and a variety of wireless multimedia services. With an increasing demand for wireless multimedia services, the performance of TCP becomes a bottleneck as it cannot differentiate between the losses due to the nature of air as a medium and high data load on the network that …
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Linking session based services with transport plane resources in IP multimedia subsystems.
… 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 services. Despite the obvious advantages of …
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An Integrated and Qos-Aware Framework for Multimedia Service Management
… of Q-MSM are as follows. First, the multimedia service model allows for service developers to specify different service delivery forms for each service. Second, the Q-MSM runtime system provides generic support for different multimedia services, and service developers do not have to …
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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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Packet scheduling algorithms in LTE systems
… the Quality of Service (QoS) of wireless services. Long Term Evolution (LTE) is a development of the Third-Generation Partnership Project (3GPP) with the aim to meet the needs of International Telecommunication Union (ITU). Some of its aspects are highlighted as follows: increase in data …
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Modeling and analysis of self-similar traffic in ATM networks
… rates, the traffic generated by a wide range of multimedia services. ATM is suitable for the multimedia traffic environment because it offers a great flexibility and efficiency in the use of available. resources. In this thesis we generate, model and find performance measures of self-similar …
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Mobile multimedia service provisioning with collective terminals in broadband satellite networks. An approach for systematic satellite communication system design for service provisioning to collective mobile terminals including: mobile satellite channel modelling, antenna pointing, hierarchical multi-service dimensioning and aeronautical system dimensioning.
… work deals with provisioning of communication services via satellites for collectively mobile user groups in a heterogeneous network with several radio access technologies. The extended use of personalised user equipment beyond the coverage of one single terrestrial network by means of a …
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Adaptive Asymmetric Slot Allocation for Heterogeneous Traffic in WCDMA/TDD Systems
… 4th generation wireless systems aim to achieve multimedia services at high speed, it is rather difficult to have full-fledged multimedia services due to insufficient capacity of the systems. There are many technical challenges placed on us in order to realize the real multimedia services. One of …
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Cross-layer RaCM design for vertically integrated wireless networks
… service (QoS) to support the variety of existing multimedia services over wireless technology. Wireless communication is also unreliable in nature, making the provisioning of agreed QoS even more challenging. Considering the advantages and disadvantages, wireless networks prove well-suited to …
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Quality of service optimization of multimedia traffic in mobile networks
… 3G are expected to cater for a wide variety of services such as speech, data, image transmission, video, as well as multimedia services consisting of a combination of these. With the air interface being the bottleneck in mobile networks, recent enhancing technologies such as the High Speed …
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Effective distribution of high bandwidth to the last mile
… and generally do not have access to enhanced services such as enriched multimedia services, converged voice, video, and data services and high-speed Web browsing. This thesis assesses a broad spectrum of wired and wireless last mile technologies available - Optical Fiber Technology, Digital …
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