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Under the rapid development of information technology in todays society, kiosk system has become an indispensable part in many fields. Especially in retail business, retailers use the kiosk system to meet customer demanding and promote overturn. These systems have been widely used in food chains, department stores, book stores, entertainment and recreation services and supermarkets, which have highly...
Because of various reasons: cuts in financing, students massive participation in full-time work, rapidly improving technological possibilities etc. the university education is massively moving online and direct classroom contact of teachers with students is replaced with computer network mediated communication, where features of educational processes should be extracted by analyzing data created in...
Device-to-device communication (also referred to as opportunistic networking) is considered a feasible means for offloading mobile data traffic. Due to the sporadic nature of contact opportunities, applications in the domain of device-to-device communication are assumed to be delay-tolerant, with content delivery deadlines being in the order of hours. However, predictions suggest that by 2020 more...
CDNs are today the most scalable way of distributing content. Thanks to CDN interconnection even smaller operators can achieve global footprint. The main cost of this operation is the added latency because requests have to traverse multiple autonomous networks. The work in this article was able to quantify the real impact of this phenomenon and to point to its drawbacks and potential solutions.
End-users in online video services are sensitive to the overall quality of the video at screen, but also, and more importantly, to other factors, including the latency between the video generation and the playback for live videos. If the improvement of the quality of the perceived video has been well investigated by the multimedia community, the impact of delay, latency, and re-buffering has not received...
Smart spaces support development of advanced service-oriented applications that introduce intelligence into Internet of Things environments. Current development meets the performance challenge, since the intelligence is achieved by the cost of performance. In this paper, we experimentally study a representative application for smart spaces — the SmartRoom system. It assists humans in such collaborative...
Most Content Delivery Networks (CDNs) are operated as a Software as a Service (SaaS): Many cloud providers build their custom CDNs to benefit from content users, as well as reduce demand on their own telecommunications infrastructure. More importantly, though, CDNs contribute to cloud adoption, as they can address network problems of cloud computing. With multimedia content providers requiring CDN...
This paper discusses about file sizeoptimization of text-based Web resources with the aim of networktraffic reduction. From the perspective of network traffic reduction, wasteful representations written in text-based resources(e.g., indent, line break and comment) should be eliminated byapplying any optimization techniques before the deployment. However, there are no common-sense of size optimization...
Based on the theory of constructivism, this paper discusses in details the main factors of designing the learning platform of multimedia teaching resources, such as students, resources and teachers as well as the way of making full use of multimedia teaching resources.
Combining with the characteristics and actual demand of medical English, network-based medical English autonomous learning platform is put forward. This platform adopts Browser/Server architecture and it is developed based on ASP.NET technology and SQL Server 2005 database. Overall architecture, function and database are designed in detail. The platform provides learning tool and learning resources...
The IP Multimedia Subsystem (IMS) enables the convergence of voice, data, and multimedia services. IMS is well integrated with existing voice and data networks, while adopting many of their key characteristics. SIP (Session Initiation Protocol) provides a pathway to build a single unified network, bridging the gap that previously existed between the once-separated Telecom and Internet networks. The...
In this paper, we introduce a method for synchronization of multiple devices based on context sharing and system design for multimodal contents service. A main advantage we can expect from our system environment is eliciting abundant function features of each device and exploiting them for rendering multimodal information in more efficient ways. To make it feasible, context s haring takes a significant...
In emergency scenarios, e.g., natural disasters, the infrastructure of telecommunication system is partially or even completely disrupted. While the bandwidth and energy resources of system are limited, the maltimedia communication demand of myriad usen may reach the peak of data traffic. This in tum makes the system more challenging to serve the users high quality of maltimedia streaming with con...
The performance of IMS affect mission critical applications which has a strict requirements due to its special operating nature and associated tasks. End-end Delay of the access technology components along with IMS entities affect the end-to-end signaling and Quality of Experience (QoE) offered for the end user in large scale systems. Having a generic system that has IMS core network serving both...
In this paper, a RTP streaming media application for video signals on demand or multicast is proposed based on MPEG-4 coding features and RTP/RTCP principles. A optibase's MPEG-4 Movie Maker 400 card and Apple's DARWIN streaming media sever are used, and RTP packing algorithm based on the MPEG-4 transmission is also used. Experiments show that the algorithm has efficient transmission and packet loss...
This paper reports on applicability of the Chinese Remainder Theorem (CRT) based Group Key Management (CRTGKM) for cloud environment. The results of our experiments confirm that the cloud environment group key management schemes known as ACV-BGKM and AB-GKM require high computation time for key update and key recovery processes. Therefore, to reduce the computational cost, a CRTGKM algorithm of multimedia...
Multimedia conferencing is the conversational exchange of multimedia content between multiple parties. It has a wide range of applications (e.g. Massively Multiplayer Online Games (MMOGs) and distance learning). Many multimedia conferencing applications use video extensively, thus video mixing in conferencing settings is of critical importance. Cloud computing is a technology that can solve the scalability...
In Video-on-Demand system, periodic broadcasting is the most bandwidth-efficient method to provide clients with popular videos. Many broadcasting schemes have been proposed to reduce server's bandwidth as well as client's waiting time. However, most of the schemes assume clients to have enough reception bandwidth, which is impractical since client's reception bandwidth varies, especially in wireless...
Video-on-demand (VOD) system allows users to access media any time without the need to leave their home. Hard disk drive (HDD) has become popular for VOD storage to store and deal with a large amount of data. In practical cases, disk storage throughput is limited by a slow HDD and disk operating degrades drastically when the server needs to serve many simultaneous video streams. On the other hand,...
In education, application of Information and Communication Technology (ICT) brings out the term of digital learning which can be used to support conventional learning process. Digital learning is one of alternative solutions to problems concerning good quality education disparities in rural areas, which is caused by the lacking of teacher resources. Case study in Cianjur is an action in applying ICT...
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