On tightly managing end-to-end QoS and security for IPTV service delivery.
ABSTRACT Today, the IPTV technology is emerging as a new concept for delivering and accessing audiovisual services over IP networks. To allow the transmission of IPTV services on wired and wireless networks, different issues should be overcome: scalability, QoS provisioning, security guaranty, and terminals heterogeneity. In this regards, there is a relation between QoS and security as both need to be carefully and tightly managed in a complete framework and not tackled separately. In this paper, we show how QoS and security are tightly managed in a complete end-to-end architecture for providing IPTV services while addressing the majority of the above issues (scalability, QoS, security, and heterogeneity). In particular, we propose an IPTV architecture that deals with end-to-end QoS and security management at two segments: the core network and the access network. The core network is composed of independent domains where each of them is managed by a local domain manager having service level negotiation capabilities. The access network is considered as WLAN (802.11) which connects heterogeneous mobile terminals. The proposed IPTV architecture includes two main entities: the Content Server which provides the TV stream in the core network and the Adaptation Gateway that assures the TV stream adaptation in wireless network according to terminal capabilities and user profile.
Conference Proceeding: Introduction of Security in the Service Level Negotiated with SLNP Protocol.[show abstract] [hide abstract]
ABSTRACT: Today, the evolution of IP networks and the diversity of the data flowing through these networks require domain managers to ensure quality of service (QoS), security and mobility for various communications. Security and QoS can be negotiated between domain managers implied in a service offer. The SLNP (Service Level Negotiation Protocol) protocol allows the negotiation of a service level QoS and it functions in the interoperable environment of web services. The objective of this paper is to consider QoS requirements of the communications when security is introduced in the service level negotiated with the SLNP protocol.NTMS 2008, 2nd International Conference on New Technologies, Mobility and Security, November 5-7, 2008, Tangier, Morocco; 01/2008
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ABSTRACT: The deployment of QoS over the Internet may achieve protocols for the negotiation of service levels, as well as mechanisms for the end-to-end realization of service level agreements. Such general-purpose protocols include Common Open Policy Service (COPS) for policy specification within a domain. This article proposes an extension of the COPS protocol for intra- and interdomain service level negotiation. The proposed protocol is known as COPS-SLS. This allows the configuration of domain policies regarding service levels, and the automatic negotiation of service levels within the domain policiesIEEE Communications Magazine 06/2002; · 3.66 Impact Factor
Conference Proceeding: Dynamic service negotiation protocol (DSNP) and wireless DiffServ[show abstract] [hide abstract]
ABSTRACT: This paper presents the design principles of dynamic service negotiation protocol (DSNP). DSNP is a protocol to negotiate the SLS (service level specification) in the IP layer. It can be used for service negotiation from host to network, network to host, and network to network. The automated negotiation makes service negotiation efficient in terms of time, cost, and correctness. The dynamic negotiation not only allows users to adapt their needs dynamically, but also lets providers utilize the network better. DSNP can be used in both wireline and wireless networks. It is, however, particularly useful in the mobile environment. To demonstrate the usefulness of DSNP, a reference wireless QoS architecture based on DiffServ is presented. Example applications and experimental results are illustrated.Communications, 2002. ICC 2002. IEEE International Conference on; 02/2002