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Excessive bandwidth consuming by peer-to-peer (P2P) applications is one of serious problems in residential networks such as in dorms, apartments and even Small and Medium-sized Enterprises (SMEs) networks which have a limited bandwidth. P2P file sharing and P2P streaming applications usually are the cause of this problem. To share the bandwidth fairly among users, the traffic of these applications...
Dynamic Adaptive Streaming over HTTP (DASH) standard was designed to improve quality of experience (QoE) by enabling video distribution at different quality levels according to the clients' network conditions. Moreover, DASH is compatible with the H.264 Scalable Video Coding (SVC) technology. In Content Delivery Networks (CDNs)-P2P hybrid approach, users can fetch contents from the CDN edge network,...
This paper presents Ogranization and Control Proxy (OCP), a distributed network agent architecture for the optimization of heterogeneous MANET resources. OCP manages spectrum allocation/de-confliction, spatial spectrum reuse, and the dynamic setup and management of multiple heterogeneous omni and directional data links. OCP is a multi-tiered agent architecture and has been built and field-tested on...
Hybrid Peer-to-Peer streaming systems combine the advantages of an efficient push-based with a more resilient pull-based system to deliver video streams over the Internet. In this manner, hybrid systems offer low latency and an increased robustness to failures and node churn. However, current hybrid systems is vulnerable to misbehaving nodes and deliberate attacks. By taking central positions in the...
Data transfer of large files over the Internet is often performed using Peer-to-Peer (P2P) technology. BitTorrent is the most popular P2P content distribution application. In general, BitTorrent users have much higher download bandwidth than upload bandwidth. It leads to bottleneck problem under the lack of the upload bandwidth, and it drastically degrades the performance of the overall system. In...
Content Centric Networking (CCN) has been emerged as a new networking paradigm. In CCN, adaptive video streaming is one of the most promising technologies. However, rate adaptation and outbound face selection are the primary concern since a node cannot reliably estimate the end-to-end throughput. In this paper, we propose a strategy for outbound face selection considering both response time and bit-rate...
Cellular networks do not have enough capacity to accommodate the exponential growth of mobile data requirement. Data can be delivered between mobile terminals through peer-to-peer WiFi communications (e.g. WiFi direct), but contacts between mobile terminals are frequently disrupted because of the user's mobility. This paper proposes a Subscribe-and-Send architecture, under which a user subscribes...
Numerous research groups and other organizations collect data from popular data sources such as online social networks. This leads to the problem of data islands, wherein all this data is isolated and lying idly, without any use to the community at large. Using existing centralized solutions such as Drop box to replicate data to all interested parties is prohibitively costly, given the large size...
The performance of a distributed file system significantly affects data-intensive applications that frequently execute I/O operations on large amounts of data. Although many modern distributed file systems are geared to provide highly efficient I/O performance, their operations are nonetheless affected by runtime overhead in data transfer between client nodes and I/O servers. A large part of the overhead...
Video-on-demand (VoD) service has been explosively growing since its first appearance. For maintaining an acceptable buffering delay, the bandwidth costs have become a huge burden for the service providers. Complementing the conventional client-server architecture with a peer-to-peer system(P2P) can significantly reduce the central server's bandwidth demands. However, the previous works focus on establishing...
A challenge in designing a peer-to-peer (P2P) system is to ensure that the system is able to tolerate selfish nodes that strategically deviate from their specification whenever doing so is convenient. In this paper, we propose RACOON, a framework for the design of P2P systems that are resilient to selfish behaviours. While most existing solutions target specific systems or types of selfishness, RACOON...
This paper studies the resource allocation problem for efficiently utilizing network resources for distributing video over a peer to peer mobile ad hoc network. We define an NP complete linear optimization problem to handle the upload bandwidth available across each node. Scalable video coding is used to maximize the quality of experience among users and to distribute the load and reduce the consumed...
Mobile peer-to-peer (P2P) network is a simple computing network in which some of the mobile devices are communicated with peer-to-peer mode through access point. Energy efficiency in mobile P2P is improved by increasing the number of active nodes on the network and reducing the consumed energy by the number of idle nodes. However, if a lot of the number of active nodes perform the transmission process,...
Today, the popularity of peer-to-peer (P2P) applications have increased significantly globally. It starts previously on music file sharing system and progressively develops in many application domains. Currently, P2P applications are able to offer various emerging applications ranging from music, video, IPTV and so on. P2P applications are an attractive service because it allows users for accessing...
In recent years, online social networks (OSN) have become very popular. These types of networks have been useful to find former classmates or to improve our interaction with friends. Currently, a huge amount of information is generated and consumed by millions of people from these types of networks. Most popular online social networks are based on centralized servers, which are responsible for the...
Recently, the live video streaming application using P2P multicasting called P2PTV attracts attentions as a means to deliver live streaming video to a large number of users since the server load becomes low compared with a unicast-based delivery. Since many current P2PTV services choose a relay peer for a newly joining peer without considering the network distance between peers, the end-to-end router...
This paper presents a Stackelberg game between the tracker and peer of a torrent in a BitTorrent community which incentivizes cooperation amongst peers. We propose a change in the allocation of peers to a peer by tracker and suggest modifications in the allocation algorithm rather than keeping it completely random. By this change the role of tracker in a BitTorrent community is promoted from just...
Peer-to-peer (P2P) is a decentralized communications model which was originally used for file sharing, and more recently for real-time communications and media streaming. Due to the utilization of resources, demand of peer to peer network is increasing rapidly and today significant part of the Internet traffic is generated by peer-to-peer (P2P) applications. Live video streaming in peer to peer network...
Computer Supported Collaborative Work (CSCW) has been greatly enhanced by technology that provides almost real-time capture, replay, and sharing of content. “The cloud” has popularized ease of deployment for apps serviced through a centralized approach. In this work we propose a more aggressive design, decentralizing the location of shared content within a peer-to-peer structure. Ease of deployment...
Video streaming is one of the most popular internet services and generates a large percentage of the global network traffic. As major video-on-demand (VoD) service providers have seen their bandwidth costs increase, a shift towards peer-to-peer (P2P) architectures has been made. Indeed a number of recent research efforts have focused on offloading media server using P2P architectures, however the...
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