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Nowadays there is a growing uncertainty about the near future evolution of classical PMR solutions due to spectrum scarcity, digital dividend issues and economic crisis. This paper aims at facing this situation by seizing the existing window of opportunity due to the convergence of the IMS as a predominant enabler for future multimedia networks and the deployment of commercial LTE networks. The paper...
Digital Cultural Heritage Map is a dynamic, webbased application that combines web-mapping, digital archives and multimedia. User-generated content can be manipulated from a back-end CMS. Application's goal is to gather spatial cultural data of a geographic area. This paper presents the designing and implementation process of the application. We present the philosophy and the guidelines that influenced...
In the recent years, there is an extremely growing interest for the digitalization of museums through the utilization of Information and Communication Technologies (ICTs). A virtual museum platform, named iMuse is presented in this paper. The platform aims to enhance museum visits, assist visitors navigate inside the museum and to provide access to multimedia content using the recent advances in Web,...
HTTP Streaming is a recent topic in multimedia communications with on-going standardization activities, especially with the MPEG DASH standard which covers on demand and live services. One of the main issues in live services deployment is the reduction of the overall latency. Low or very low latency streaming is still a challenge. In this paper, we push the use of DASH to its limits with regards to...
Questionnaire is a general and indispensable method used frequently and widely in many academic, engineering, medical, commercial and political survey research activities to collect information about opinion or behavior of some groups of people. Today, many questionnaires are performed on the Internet by some ways of web applications. However, until now, there is no questionnaire specification language...
This paper aims to present a transmission system model for a free-viewpoint television (FTV) service considering service scenarios. The proposed system model is based on the hy-bridcast of the digital terrestrial television broadcasting network and content delivery communication network. Also we propose the packet structure for the FTV transmission system considering the system requirement. The proposed...
Availability and increased hardware performance of handheld devices with high resolution screens encourage users to exploit them as the second screen while watching television. Second screen is a term that refers to an additional screen of a handheld device such as a tablet or a smart phone, with an operating system capable of running desired installed applications. Desire to make additional DTV information...
Over the past decades, the importance of multimedia services such as video streaming has increased considerably. Since streaming protocols such as Real Time Streaming Protocol (RTSP) and Real Time Transport Protocol (RTP) require server-side bit-rate adaptation schemes, they are not ideally suited to deal with highly heterogeneous and dynamically changing network conditions. Therefore, research shifted...
Content adaptation is used to adapt multimedia content to a version required by users. In the service-oriented scheme, adaptation functions are provided as services by third-party service providers. Clients pay for the consumed services and thus demand service quality. Providers advertise their services; each with varied quality-of-services (QoS). Some of these QoS however, may not be deliverable...
In IP multimedia subsystem (IMS), in order to have a multimedia service first a session should be established. The signaling part is done by the SIP protocol-the most important protocol used in IMS network. Excessive signaling during the session setup mechanism leads to an undesirable delay in session establishment and also the final response of the other subscriber. This matter is considered important...
Quad-play intends to combine internet access, television and telephone with wireless access. It is a major vision for network convergence in the next generation networks. To deliver the streaming contents to user equipments is a key issue due to the high bandwidth consumption and the geographical spread of end users. Peer to Peer technology is widely adopted for this kind of service. Peer to Peer...
Nowadays, mobile devices have became more and more popular and powerful. Mobile devices provide an ability to connect to Internet, online sharing applications and access to cloud data. For that reason, each mobile device can play a role as communication and computing environment itself. This paper describes an agent-based architecture, which is residing on mobile devices and sharing multimedia data...
The next-generation heterogeneous networks aim to offer users of various networks seamless high quality IP-based multimedia services access anywhere at any time. IMS (IP Multimedia Subsystem) comes as a promising overlay service that provides a platform through which telecommunications operators can merge various networks to provide seamless data services. In this paper, we propose an architecture...
The proliferation of various objects and explosive development of the Internet technologies such as Web of Objects (WoO) have contributed to an increasing demand for multimedia streaming applications. The adaptation of multimedia content according to context information is essential to supporting these applications in the WoO environments. In this study, we design a context-aware adaptive streaming...
IP Multimedia Subsystem (IMS) has been standardized by 3GPP/3GPP2 to provide essential services to users of the 4G and beyond. Its capabilities to scale and integrate with Next Generation Network (NGN) has given IMS widespread applicability in the Next Generation Networks (NGN). IMS relies heavily on SIP (Session Initiation Protocol) to insure initialization, negotiation and termination of services...
This paper analyzes one type of denial of service attacks in Mobile Adhoc Networks called SYN flooding attack, and its impact on the quality of service parameters. Denial of service attacks generally take away the resources and the services of the node and deny further legitimate services. In SYN flooding attack, an attack node sends many TCP (Transmission Control Protocol) SYN requests with spoofed...
With the introduction of social networks like Facebook, Google+, and Twitter, the ways of sharing impressions of events has changed. We try to go a step further than social networks do. We offer the possibility to share events live with friends and colleagues. Our approach is based on semantic search in unstructured peer-to-peer (P2P) networks for querying content in mobile ad hoc networks and dynamic...
Combining evaluations of different kinds, like of user feedback origin, is often a necessary optimization step in communications software and in several applied areas that require personalized or statistical customization. This paper is introducing a fingerprinting fusion approach to identify the optimal operator inside a family of well known and identified as suitable information retrieval data-fusion...
Embedded devices in the present life have been very common and its largest feature, flexibility, is an important reason making embedded devices popularity in current. In this paper, based on the analysis of the above features of the embedded device, a real-time access of multimedia resources in the LAN system has been designed. The system finally implements playing text, image, audio, and video on...
In order to improve the level of higher education support services and enhance their ability to participate in social competition, based on modern information technology and network multimedia technology, to establish a logistics service network support systems on ISO9001 certification, is to achieve modernization of university management system certification and standardization of the urgent need...
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