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Many BitTorrent (BT) clients are using these BT networks as a video-on-demand service, taking advantage of the popularity and the large collection of media available. However, transforming the swarms into an on-demand media service can cause serious damage to the overall network performance. In this paper, we propose a methodology, using the concepts of Entropy, and present a Spy BitTorrent client...
Most businesses collect and store sensitive information about their work or related like project documents, audio data, video data etc. while sharing files in peer-to-peer system dynamically peer nodes can add may delete. Peer-to-Peer file sharing using P2P application architecture. Shared files will move between different nodes. P2P technology is using by popular services like Napster, Bit Torrent,...
This paper presents an architecture for monitoring the presentation of multimedia declarative applications, providing feedback about variables states, object properties, media presentation times, among others. Monitoring tools that follow the proposed architecture are able to detect if visual problems are being caused by programming errors or by player malfunctioning. The architecture presents a communication...
Media streaming services are responsible for the significant increase of Internet traffic. This fact generates the need for better computing resources management in order to maintain such services always available. Cloud computing offers an elastic infrastructure that provides computing resources on demand in order to maintain such services always available. Moreover, emerging network architectures,...
The evergrowing availability of access technologies, on-line services and connected devices has been motivating the development of novel networking solutions, fostering new deployments of cloud computing, Network Function Virtualization and even mobile accesses. One of the core aspects supporting these innovative solutions is the Software Defined Networking (SDN) concept, which brings added configuration...
Management of content servers enables to lower the probability of congestion and overload situations in the network as well as dealing with such situations if they occur. Hence the overall quality of media delivery experienced by the end users is improved. In this paper we propose an integrated system for adapting the content servers that is capable of analyzing current network conditions (fault reporting)...
With the development of NGN which has SIP as the core protocol, there are more and more video communication services. It becomes focused on how to implement the interception and control in Video communication system based on SIP in real time. This article puts emphases on the character of SIP and the video communication system themselves and puts forward a design of the model. It uses the feature...
Presently, all of local power enterprises mostly have built video monitoring systems, because there were no standards that can be adopted in initial stages, these systems were running independently and cannot be interconnected, so the need of accessing video information between different areas cannot be met. The first problem of interconnection that need to be solved is to unify call signaling and...
An existing network video monitoring system has already realized putting independent video sources online, to monitor, manage and share resources in unison, in use of IP-based network. With the popularization of wireless network, system should resolve the bandwidth bottleneck in order for good of support for wireless video's uploading technology. So as to improve user experience, it is very important...
We present NetServ, a node architecture for deploying in-network services in the next generation Internet. NetServ-enabled network nodes provide a common execution environment, where network services implemented as modules can be dynamically installed and removed. We demonstrate three such modules. MicroCDN is a dynamic content distribution network (CDN) service which implements a content caching...
For some time now there have been initiatives (European SmartGrids, GridWise) to develop new visions of the future electric system — smart grid, triggered with the increasing demand for electricity and the drive for lower carbon generation, and made possible by new advances in technology. In order to deliver electric energy reliably and efficiently to end-users, smart system has to monitor and control...
OpenFlow protocol allows researchers to use programmable networking techniques to flexibly assign networking resources and manage network traffic according to user demands. In this paper, by taking SAGE Visualcasting as an example user application, we propose that OpenFlow-based programmable networking can be interactively utilized together with other monitoring schemes to enhance the performance...
Along with the appearance of rapid development of wireless network and integration with wire, wire and wireless environment which can easily be connected to service network of internet or business enterprise at indoors including home and outdoors have been provided, and in accordance with this, the environment in which private broadcasting can be operated by renting from the network of business enterprise...
Improvement of computing devices caused a wide range of changes in our life with new technologies such as cloud computing and n-screen. Virtualization is at the center of these challenges and here we approach N-screen service based on the I/O Virtualization. To support seamless screen of a personal computing, we virtualized individual screen devices to be plugged into the remote OS. Here we suggest...
In this paper we aim to enable security within SIP enterprise domains by providing monitoring capabilities at three levels: the network traffic, the server logs and the billing records. We propose an anomaly detection approach based on appropriate feature extraction and one-class Support Vector Machines (SVM). We propose methods for anomaly/attack type classification and attack source identification...
In order to realize the fusion of coal mine voice network, data network and video monitoring network, to improve reliability, flexibility and expansibility of safety production and management, the paper analyses the system structure of the softswitch, and researching and designing based multi-service based on softswitch of coal mine. The model of multi-service platform based on softwitch in coal mine...
Monitoring is crucial both to the correct operation of a network and to the services that run on it. Operators perform monitoring for various purposes, including traffic engineering, quality of service, security and detection of faults and mis-configurations. However, the relentless growth of IP traffic volume renders real-time monitoring and analysis of data a very challenging problem. In this paper...
A traditional wireless sensor network is composed of several sensors and a sink. The sink analyzes data measured by the distributed sensors and takes appropriate action. A problem with this kind of architecture is that it may have a single-point of failure. Also, sensors are not connected directly to the sink and must send data by hopping through other sensors. This means that it would take more time...
Considering the high requirement of the ability to process data, BF561 is chosen as hardware platform, which is the new microprocessor especially designed for multimedia application, so are the embedded operation system uClinux whose kernel can be configured freely and the PJSIP stack to develop the endpoint. The video telephone endpoint is achieved which integrates software and hardware, transmit...
The market growth of VoIP infrastructures and services is pushing towards additional facilities to enrich service offer in an open way, thus representing also a differentiating aspect and a competitive advantage for service providers. We claim that the proactive provisioning of estimations about runtime VoIP quality is a crucial facility still missing in VoIP services. For instance, such a facility...
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