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This paper proposes an integrated poor-quality model to find the potential relationship between elected STB (set-top boxes) indicators and network conditions. The target is to make the IPTV network fault diagnosis more accurately and efficiently, especially for the sudden pause or blurred screen. The integrated poor-quality model consists of indicator, record and user model. Firstly, the poor-quality...
The study presents the results of self-similar traffic effect on the performance quality indicators in the MPLS network using ns2 simulator. Multimedia 4G network traffic and IPTV-traffic were used as the test traffics. The statistical structure of the multimedia traffic was studied. There were determined probability laws of intervals of admission packages for service and probability time distribution...
This paper analyses the impact of access network of physical impairments in DSL environment caused by primary parameters imperfections. It also analyses the correlation of BER (Bit Error Rate) and error control of DSL system with values of MDI (Media Delivery Index) which gives an indication of expected IPTV (Internet Protocol Television) QoE (Quality of Experience). Also this paper gives a review...
The most popular Differentiated Services composed of two key components: traffic conditioning and PHB (Per Hop Behavior). This paper addresses the affects of a packet handling mechanism LLQ (Low Latency Queuing) and several dropping schemes to quality of service in term of delay, jitter and packet loss. These schemes include RED (Random Early Detection), WRED (Weighted Random Early Detection) and...
This paper studies QoE (Quality of Experience) in Multi-View Video and Audio (MVV-A) transmission over IP networks where the users change the viewpoint by request. It jointly analyzes the effects of user interfaces for viewpoint change and contents in conjunction with network performance in a multidimensional way. In order to assess the QoE, we perform a subjective experiment which employs two user...
In this paper, we propose QoE assessment model for video streaming service such as IPTV and VoD using QoS parameters in wired-wireless network. Existing perceptual quality assessment models are unsuitable for experienced quality assessment of a streaming service which passed through the IP-based network because they only take account of the characteristic of used codec and bit rate. However, QoS parameters...
Internet Protocol Television or IPTV is defined as an alternate method of distributing television content over IP by a telecom carrier or an Internet service provider (ISP) and it is increasingly gaining market share in modern communication networks. IPTV poses specific requirements on the network infrastructure and at the same time it requires that several network performance characteristics are...
In this paper, we propose QoS-aware AQM(Active Queue Management) method considering video quality level that service users request in DiffServ network environment. QoS provision is essential in order to provide multimedia services because real-time multimedia services such as IPTV and VoIP are sensitive to delay and packet loss. However, existing AQM methods can't guarantee QoS for a multimedia service...
Wireless Local Area Networks (WLANs) are experiencing higher data rate and radius coverage, making possible high quality audio and video transmission. An IPTV system can be built in any home using the Wireless IEEE 802.11n standard because it provides enough data rate and range than the other IEEE 802.11 variants. IEEE 802.1a/b/g standards do not offer enough bandwidth to provide several ITPV channels...
As the escalating demand for bandwidth continues, 100-Gigabit networks mark the new frontier to be ventured by networking equipment vendors. Network processors (NPUs), fast emerging as key components in 10-Gigabit platforms, will also empower the 100-Gigabit platforms. However, packet processing at these line rates presents significant challenges to network processor designs. The most important driving...
Wireless Area Networks are commonly used for a great variety of applications. Actually, more and more people are using them as the access network technology for their home network or to access to Internet through a wireless router. In many cases, the access is performed in outdoors, not only in indoors. On the other hand, networks are experiencing a huge demand of services such as VoIP and IPTV that...
One of the main steps of service assurance is service monitoring using Key Performance Indicators (KPIs) and Service Level Agreements (SLAs). We show an approach for service modeling, first starting with an abstract service model that depends on the network. And then, we show how a corresponding model can be realized using a domain specific language. This solution is able to condense various sources...
We develop a QoS/QoE correlation model for IPTV QoE evaluation. With the growth of QoE interest, IPTV providers need a method to control QoE when QoE is not satisfied by subscribers. Network providers can evaluate subscriber's QoE using QoS parameters weight and some analyzed values which is from the proposed model, and control QoE as deduce QoS parameters(delay, loss, jitter etc) associated with...
In Peer-to-peer (P2P) IPTV networks, jitter rate is one of the most important metrics for Quality of Service. In this paper, we develop a new approach to estimate jitter rate during playback. Unlike traditional approaches that focus on the download speed, our method relies on the distribution of peer download latencies. We demonstrated how to apply the proposed methodologies in a real-life environment...
This presentation will address the perceived quality of video services and the key challenges that impact IPTV performance. We will explain how to measure the many factors that influence IPTV quality of experience (QoE) in triple play networks including: 1) Quantification of the quality of streamed video and audio content; 2) Automated testing of channel zapping time; 3) Challenges of reliability...
IP technology is the world's most widely distributed transport platform. It is robust and efficient, however lacks QoS mechanisms. This may entail problems in Triple Play Services. In such cases, QoS measurements should be performed in the network. For this purpose, versatile measurement techniques and suitable measuring systems are required. This problem lies within the scope of this paper and will...
Internet television (IPTV) is rapidly gaining popularity and is being widely deployed on the Internet. In order to deliver optimum user quality of experience (QoE), service providers need to understand and balance the trade-offs involved with user (video content, display device), application (codec type, encoding bit rate) and network (network health, router queuing discipline) factors that affect...
The next generation enterprise IP network will be business video centric. Business video applications are high-bandwidth applications consuming up to 15 Mbps bandwidth per stream. In general, video applications are extremely sensitive to packet loss and require less than .05% loss rate. The real-time interactive video applications have the most demanding delay and jitter requirements of 150 ms and...
IPTV is a system where a digital television service is delivered by using IP packets over broadband network infrastructure. IPTV can be operated through telephone line that is installed almost in all houses. Transmitted video streams take bandwidth and also need priority running in queue with other services in the providerpsilas network. Such has in the effect implementation the quality of service...
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