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In this demonstration, we show our ongoing work called MOVi+ that extends MOVi (Mobile Opportunistic Video-on-demand) for improving the scalability in terms of number of mobile clients. By exploiting sustainable segment-based caching-enabled switch, MOVi+ increases the opportunity of peer-to-peer connectivity, which can eventually service more number of mobile clients than original MOVi with shorter...
In the past years there has been substantial amount of research focused on the transition mechanisms to allow the Internet to gradually evolve into a fully fledged IPv6 network. With the prevalence of smartphones, internet tablets and netbooks, a large portion of the end users has become truly mobile. Now, that all of the remaining IPv4 addresses have been allocated, the transition from IPv4 to IPv6...
Video streaming is considered as one of the most important and challenging applications for next generation cellular networks. Current infrastructures are not prepared to deal with the increasing amount of video traffic. The current Internet, and in particular the mobile Internet, was not designed with video requirements in mind and, as a consequence, its architecture is very inefficient for handling...
Mobile devices today such as netbooks, tablet PCs and smart phones provide user-friendly interfaces for people to capture live video. However as a viewer, they prefer not to share downloaded clips due to the limited computing power, upload bandwidth and mostly due to the high power consumption while scheduling segments. In this paper, we discuss the possibility of allowing mobile clients run as free...
With increasing needs of a live video streaming service to mobile devices, peer-to-peer video delivery is required to provide seamless quality of video even if a user moves across heterogeneous networks. In this paper, we address technical challenges and approaches to providing users a seamless video quality in P2P-based live video streaming services over mobile heterogeneous networks by investigating...
The enhancements of the transmission speed in wireless access networks and mobile-device capacity enable us to use data/audio streaming/video streaming multicast service in large scale networks via their personal mobile devices. Peer-to-peer (P2P) architecture ensures scalability and robustness more easily and more economically than server-client architecture; as the number of nodes in a P2P network...
Because of user mobility, highly dynamic, error-prone wireless channels, the QoS control for mobile Peer-to-Peer (MP2P) streaming media has to face considerable challenges. Given to the advantages of policy management, we develop a policy-based QoS control (PBQC) architecture to provide QoS assurance dynamically and automatically in mobile network environment. And we also propose a MP2P streaming...
The rapid spread of wireless mobile devices and the advances of wireless communication have fueled the interest about streaming 3D graphics on mobile devices to be used in augmented reality based classes of applications. In these types of applications, a real world is mapped into the virtual world and thin mobile devices are employed to navigate in the virtual simulated environment (VE). In evidence,...
The rapid development of wireless communication and sensor technologies have enhanced the learning performance. Therefore, the web-based learning has been evolved into mobile learning and even ubiquitous learning in recent years. Ubiquitous learning facilitates interactive and context aware services and provide an intelligent learning environment to enable people to learn using any device at any place,...
With recent advance in wireless networks and advent of powerful mobile devices such as smart phones, IPTV services become feasible in mobile platforms. Peer-to- Peer streaming techniques are expected be a promising solution to a large-scale mobile IPTV services by providing low cost and high scalability. On the other hand, the major concern for designing mobile IPTV systems is that mobile devices...
We studied consumer attitudes towards different aspects of mobile peer-to-peer services by administering questionnaires to Finnish consumers using advanced handsets (N = 196). Most of the intention to use non-established services did not materialize as actual usage. Music and software downloading attracted most payment willingness. Legal file sharing stood out as a promising new business model. Respondents...
In this paper, we address the problem of collaborative video caching in mobile ad-hoc networks. We consider network portraying static video server with wired interface to gateway node that is equipped with wireless interfaces, other nodes are requiring access to the video streams that is stored at video server. In order to reduce the average access latency as well as enhance the video accessibility,...
This paper presents an adaptation of peer-to-peer diffusion strategies of video over mobile links based on the use of multiple description coding. The system architecture, including the used overlay algorithm (the unstructured GIA algorithm) and video coding with multiple description coding (MDC), are presented as well as their interest in this context. Simulation results illustrate the approach,...
Peer-to-peer is emerging as a potentially disruptive technology for content distribution in the mobile Internet. In addition to the already well-known peer-to-peer file sharing, realtime peer-to-peer streaming is gaining popularity. This paper presents an effective real-time peer-to-peer streaming system for the mobile environment. The basis for the system is a scalable overlay network which groups...
Coming with the development of the wireless equipment, more applications can be transplanted onto a mobile platform. So the transmission of multimedia in the wireless network enters our sight. In order to improve the efficiency of system, we propose the p2p structure. For peers in the wireless network are less stable than normal, we use the mobile node ID instead of the static node ID in Kademlia...
In peer-to-peer (P2P) overlay networks, multimedia contents are in nature distributed to peers by downloading and caching. Here, a peer which transmits a multimedia content and a peer which receives the content are referred to as source and receiver peers, respectively. A peer on a mobile computer is moving in the network. Furthermore, a peer moves around computers as a mobile agent. Thus, not only...
Lately there has been a growing interest in the use of peer-to-peer technologies for deploying large-scale live media streaming systems over the Internet. In this paper we give a brief survey on the peer-to-peer streaming field and have also a closer look on selected applications. In practice, we analyse the selected peer-to-peer streaming systems (Octoshape, SopCast, TVAnts and TVU networks) and...
Mobile phones and related gadgets in networks are on the spot to deliver sufficient performance for rich multimedia applications and communication. In this report we introduce a video conferencing software, which seamlessly integrates mobile with stationary users into fully distributed multi-party conversations. Innovations related to this work are twofold. At first we report on a highly optimized...
A scheme that exploits the broadcast nature of the wireless communication in order to achieve multicast content delivery is presented in this paper. As opposed to broadcasting, this method enables the clients to determine on-line the delivered content, and thus preserves the advantages of an individual service. On the other hand, a multicast content delivery is much more efficient than a unicast content...
This contribution addresses the case when live packet-switched video is used to enrich circuit-switched speech calls in mobile telephony. Circuit-switched and packet-switched transmissions generally operate on completely different transmission paths resulting in different QoS in terms of delay and loss rates. In this case, video and audio data recorded at the same time are not multiplexed together...
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