Streaming multimedia over WMSNs: an online multipath routing protocol

Routing is a challenge to Wireless Multimedia Sensor Networks (WMSNs) for supporting multimedia applications due to nodes' energy constraints and computational capabilities, and the ways sensor nodes obtain forwarding information. In this paper, we propose an online multipath routing protocol that uses nodes' positions to make forwarding decisions at each hop. Real-time decisions are made without any need to have the entire network topology knowledge. The protocol achieves load-balancing and minimises nodes' energy consumption by utilizing: (a) smart greedy forwarding scheme for selecting next hop, and (b) walking back forwarding scheme to bypass network holes. Performance comparisons of the proposed protocol (schemes) are made with TPGF and GPSR. The results show that our schemes: (a) maximise the overall network lifespan by not draining energy from some specific nodes, (b) provide QoS delivery for video streams by using best nodes along the route, and (c) scale better in high density WMSN

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www.elsevier.com/locate/comnet Service invocation admission control algorithm for multi-domain IP environment

End-to-end quality of service provisioning through an integrated management system for multimedia content delivery

International audienceNext generation networks will be complex, interconnecting different technologies, and architectures (IP, DVB-T/S, UMTS, GSM/GPRS, etc.) across a multitude of software and hardware platforms for offering a large number of value-added services including multimedia, audio-visual, etc. One of the major requirements for the successful and wide deployment of such services is the efficient transmission of performance sensitive digital items (i.e., audio, video, and image) over a broad range of bandwidth-constrained wired/wireless access/core/distribution networks. This paper presents an approach to the management and provisioning of end-to-end Quality of Service (QoS) in next generation networks (IP and non-IP networks) that is being developed in the IST ENTHRONE project. The primary goal of this project is to provide a solution for seamless access to multimedia content with end-to-end QoS support through integrated management of content, networks and terminals. The adopted methodology in providing end-to-end QoS is through an integrated management in the context of MPEG-21 framework for managing services at both customer and provider levels using Service Level Agreements (SLA) concept and provisioning network resources for satisfying the customer QoS demands as well as meeting the QoS requirements of multimedia contents

Service-driven inter-domain QoS Monitoring System for Large-scale IP and DVB Networks

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Enthrone Core Networking Elements for End-to-End QoS Provision over Heterogeneous Settings

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