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Nowadays many IPTV services are deployed based on P2P structure for the sake of saving the cost of server equipment and bandwidth requirement. Since peers may join and leave the P2P system arbitrarily, it may cause the service quality unstable. In this paper, we compare IP addresses to find partner peers in proximity, and use specific packet pairs to probe partner peers that have larger bandwidth,...
Internet protocol (IP) is emerging as a ubiquitous protocol for communications and applications. IP-based services aims to provide consumers anytime-anywhere access to content over range of electronic devices and to integrate services & content, to tie them together. This paper presents an overview of various network architectures and their evolution to include an all IP based infrastructure fuelled...
This paper proposes two novel protection schemes to provide efficient and reliable MPLS Transport Profile (MPLS TP) multi-service, which is particularly relevant for the traditional service (e.g. TDM, FR) and fast growing packet service (VoIP, IPTV and so on). Both the proposed schemes based on the interconnected rings structure extend the protection methods defined in the latest joint ITU-IETF draft...
In this paper we introduce a distributed channel change framework that utilizes a dedicated server and session peers to support the fast channel change process. Support peers represent the prior choice to deliver the channel change packets to the zapping users. The dedicated server, which we refer to as the Channel Switch Coordinator (CSC), is essentially responsible for the coordination of the channel...
Base on the characteristics of IPTV(Internet Protocol television) Bearer Network, this paper discusses two core technologies of IPTV -- IP Multicast technology and CDN (Content Delivery Network), pointing out the advantages and shortcomings of them, then makes an analysis on several update improvement strategies of IPTV, including Controllable IP Multicast technology, P2P technology, DRM and QoE.
Due to the lack of multicast services in the Internet, applications based on single source multiple destinations transfers such as video conferencing, IP radio, IPTV must use unicast or application layer multicast. This in turn has several well-known drawbacks. A basic insight is that this type of traffic exhibits high redundancy with temporal clustering of duplicated packets. The redundancy originates...
Even if communication networks have become increasingly ubiquitous in nature offering connections from anywhere, often most both wireless connections and especially the fixed connection at home reach a data center at an operator facility. Operators struggle to facilitate the Internet growth. We approach the topic from the perspective of our network operator partner and we ask how this operator can...
This paper concentrates on consumer devices and digital content consumption at home. We approach the topic from the perspective of our network operator partner and we ask how this operator can improve its content distribution from the current IPTV service. We propose a consumer device grid that is an integral part of the operator's IP network. Our proposal results in savings in the operator's data...
Broadcast TV distribution over an IP network requires stringent QoS constraints, such as low latency and loss. Streaming content in IPTV is typically delivered to distribution points on an IP backbone using IP multicast protocols such as Protocol Independent Multicast Source Specific Mode (PIM-SSM). Link-restoration using MPLS or layer-2 Fast Reroute (FRR) is a proven failure restoration technique...
Triple-play services and P2P IPTV have not only led to an increasing demand for bandwidth in broadband access networks, but also to the need for new service delivery architectures. The choice of an appropriate architectural approach and sizing model for the aggregation network is studied in this paper through cost optimization models, which encompass aspects of non-stop delivery, service flexibility,...
In this paper, we propose a mechanism to support switching of multimedia services toward one display equipment among others connected to IP sharing device especially in home network. For this, we developed a client agent mounted on display equipment for recognizing of user's information, a switching agent mounted on IP sharing device, which is related to IPtables management in the device, and embedded...
Internet Protocol Television - IPTV is a new form of traditional TV, in which TV content is delivered using IP based networks which are managed to provide the required level of quality of service, experience, security, interactivity and reliability. Quality of Service (QoS) and Quality of Experience (QoE) are the two major factors which need to be ensured in order to achieve IPTV customer satisfaction...
The convergence of the telecommunications can be easily achieved by the combination of existing network technology and multimedia technology, but in reality, as seen in the actual implementation of IPVT, it's difficult to provide satisfactory levels of service to users due to issues of network bandwidth and problems of streaming system. IPTV user often experience slow response times. Therefore this...
Internet Protocol TV (IPTV) has recently gained momentum as one of the key applications in the telecommunications market. Most researchers believe that IPTV service represents a key opportunity for operators around the world to benefit from video delivery over IP networks. In this paper, we investigate the Quality of Service (QoS) and Quality of Experience (QoE) techniques for IPTV transmissions....
Bounds on the end-to-end delay, jitter and service lead/lag for all statically-provisioned multimedia traffic flows routed through any network of input-queued (IQ) switches are presented. A recursive fair stochastic matrix decomposition (RFSMD) algorithm is used to determine near-optimal transmission schedules for each switch, where the jitter and service lead/lag of all flows are simultaneously bounded...
As the next generation network gains increasing attention, IPTV has been recognized as an efficient way to provide key IP multimedia services. Compared to conventional TV services, IPTV is sensitive to the IP network characteristics such as packet loss, delay and jittering. In addition, the potential long delay in channel switching is another significant challenge for IPTV systems. In this paper,...
IPTV, enabled by aggregating new technologies in computing, networking, and storage, provides a new information access and entertainment platform in the world of digital evolution. From this perspective where information and entertainment are part of each other, we write this paper to address the issues of IPTV towards seamless infotainment. We focus our discussions to explore such IPTV potentials...
Broadcast TV distribution over an IP network requires stringent QoS constraints, such as low latency and loss. The main challenge to achieving these QoS objectives is how to design the network to respond to network failures. Streaming content in IPTV is typically delivered to the distribution points on the IP backbone using IP multicast, and in the case being considered, with protocol independent...
IPTV delivers television content over an IP infrastructure with the potential to enrich the viewing experience of users by integrating data applications with video delivery. From an engineering perspective, IPTV places both significant steady state and transient demands on network bandwidth. Typical IPTV streaming techniques incur delays to fill the play-out buffer. But, when viewers switch or surf...
In this paper we aim to reduce the switching time for Internet protocol tv (IPTV) using H.264 scalable video coding. In preview mode, we transmit the base layers of several channels simultaneously and thus switch instantaneously between them. In watching mode, the base and enhancement layers of the current channel are both transmitted and full video quality is achieved. Experiments show fast channel...
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