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Efficient content distribution is a critical challenge in vehicular networks (VANETs). This is due to the characteristics of vehicular networks, such as high mobility, dynamic topologies, short-lived links and intermittent connectivity between vehicles. Recently, information-centric networking (ICN) has been proposed to VANET scenarios for improving content delivery of infotainmentapplications. However,...
In the past, virtualisation, and with it the move toward the cloud, has had a strong influence on the ICT (Information Communication Technology) sector, and now seems set to revolutionise the telecommunications sector as well. The virtualisation into software artefacts of functions that would usually be deployed as hardware has come to be known as Network Function Virtualisation (NFV), and the European...
A multimedia wireless sensor network, a routing protocol plays an important role in saving the limited resources of sensors. It allows a node to transmit a multimedia content to the sink node, an image in our case. Also, WMSN are used in Internet of Things to serv different purposes in order to make our world smarter. In this paper, we are going to use the Castalia simulator to test different configurations...
Mobile nodes in a robust and challenging network scenario of Mobile Adhoc Network (MANET) are autonomous with self-configurable capability due to high frequency of topology change and unpredictable rearrangement of the network components during data transmission. Due to ease of set up , the vigorous networking system in MANET is very successful in conditions where it is difficult to create infrastructure...
IP Multimedia Subsystem (IMS) is widely considered as the main solution for Next Generation Network (NGN). Its signaling plan is based on S IP protocol. However, this protocol is exposed to various security threats. The third Generation Partnership Project (3GPP) proposed an Authentication and Key Agreement protocol called IMS-AKA to address SIP vulnerabilities in IMS network. Although IMS-AKA provides...
Now days, big data (e.g. multimedia content, document, data in social network, etc) is growing fast and requiring more big storage area which is capable to process all that data efficiently in short time as well as having efficient delivery system to deliver that data to diversity of devices when they access the internet anytime from anywhere.
Modern learning system offered in a recent era of technology is the one that employ computer and network technology, Video-on-Demand (VoD). The implementation on VoD on learning system presents an opportunity to access the multimedia content any time without concern about place and time. One thing that should be put on apprehension is the bandwidth consume by the architectures. On this paper, we study...
Rapid adoption of smartphones and tablets in recent years has changed the way people communicate with each other and operate in the work environment. The use of personal devices in the enterprise has become commonplace. These devices have given workers the flexibility of being mobile and still participate in collaboration sessions. However, transferring sessions between devices is not very seamless...
WebRTC is a solid initiative for building a standardized and interoperable real-time multimedia communication technology fully integrated on the WWW. Opportunity or threat, WebRTC is relevant enough to catch the attention of all market stakeholders. In this paper, we analyze the current status of WebRTC and show how creating a number of server-side enablers could push this technology beyond just peer-to-peer...
WebRTC technologies are an opportunity for achieving a real convergence between WWW, desktop and mobile multimedia real-time communications services, which will contribute to defeating fragmentation and shall provide significant advantages to users and developers all around the world. Following this vision, in this paper we introduce Kurento, a media server technology based on open source software...
Even when IMS is the most popular platform for multimedia services, the open versions of IMS ecosystem are lacking in specified functionalities for IPTVv6 and VoIPv6 services. In this paper, we extend current client and server open source software in order to provide reliability and security to these multimedia services. As a part of our work the IMS architecture for conferencing system with proposed...
in shared-memory Chip Multiprocessor (CMP), shared data between different cores must be exchanged through the last-level-shared-cache and cache coherence must be maintained at the same time. As the number of cores increase, the cache coherence wall has become more and more serious. As for the multimedia applications full of streaming-like data, existing multicore cache coherence protocols show lower...
Due to complex surveillance in environment, more and more wireless multimedia sensor networks (WMSNs) is becoming an important hot problem in network research area. Especially, the QoS-controlled architecture is a key and significant problem. Based on the distributed policy and three-dimensional hierarchy protocol model, a novel QoS architecture for distributed control is introduced and analyzed in...
This paper presents an architecture to define and disseminate heterogeneous data between multiple participants in real-time using the IP Multimedia Subsystem (IMS) with Field Programmable Gate Array (FPGA) development platforms. IMS is a communications framework permitting the exchange of data between communications devices across divergent networks. Mechanisms are defined in IMS for users to create...
Video streaming is a very demanding application in its resources. We used a previously proposed architecture, to implement a solution that will use the GRID or a Cloud infrastructure to stream video. The goal was to create an application that will allocate resources dynamically and escalate in a manner corresponding to the demand. We developed and tested the application as a proof of concept and created...
The rapid growth of networks and services has introduces new complex environments. To cope with this complexity, IBM proposed autonomic computing. It allows systems to mange themselves instead of relying on IT professionals. On the other hand, overlay networks are getting a great attention due to the reliable and effective services that they provide. With the increased number of mobile users and services,...
Multimedia service composition provides a flexible way of building customized multimedia content production and delivery by composing distributed multimedia-oriented services dynamically to provide new functionalities. Previous researches have addressed various aspects of multimedia service composition such as composability, QoS-awareness, and load balancing. Most of them however have assumed that...
The IP Multimedia Subsystem (IMS) aims to provide cellular access to all the services that the Internet offers; it is an overlay control layer on top of an IP layer. Wireless Sensor Networks (WSN) with mobile sinks are useful in a wide range of scenarios since they can improve the overall network lifetime and increase data capacity. Combining the capabilities of IMS with the rich set of contextual...
Wireless actuators are small scale devices that can receive/accept instructions and act on their environment. The IP Multimedia Subsystem (IMS) is a key component for 3G networks. It aims at seamless provisioning of multimedia services. Combining actuation capabilities with IMS capabilities will certainly enable novel value added services. This paper proposes an architecture for the integration of...
In this paper we present a uniform session-based media controlling framework for IMS terminal. With this framework rich innovative communication services session-based can be developed conveniently to provide users with novel communication experience in IMS. The author analyzes the creation, modification and termination of the sip session in detail, and studies changes of media stream state along...
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