Loading...
Search for:
layered-overlay
0.006 seconds
L-overlay: A layered data management scheme for peer-to-peer computing
, Article Peer-to-Peer Networking and Applications ; Vol. 7, issue. 2 , 2014 , Pages 199-212 ; ISSN: 19366442 ; Habibi, J ; Sharif University of Technology
Abstract
Efficient storage and handling of data stored in a peer-to-peer (P2P) network, proves vital for various applications such as query processing and data mining. This paper presents a distributed, scalable and robust layered overlay (L-overlay) to index and manage multidimensional data in a dynamic P2P network. The proposed method distinguishes between the data and peer layers, with efficient mapping between the two. The data is organized such that semantically similar data objects are accessed hastily. Grid and tree structures are proposed for the peer layer. As application examples of L-overlay in query processing and data mining, k-nearest neighbors query processing and distributed Naïve...
Layeredcast - A hybrid peer-to-peer live layered video streaming protocol
, Article 2010 5th International Symposium on Telecommunications, IST 2010, 4 December 2010 through 6 December 2010 ; 2010 , Pages 663-668 ; 9781424481835 (ISBN) ; Motamedi, R ; Rabiee, H. R ; Khansari, M ; Sharif University of Technology
Abstract
Peer-to-Peer overlay networks are an attractive foundation for video streaming. However, live Peer-to-Peer media streaming systems face many challenges such as bandwidth heterogeneity, node churn, and selfish nodes. Although many tree based and mesh based streaming protocols have been proposed, each has its own drawbacks such as unreliability and unfairness in tree based and long startup delay and complex scheduling in mesh based protocols. In this paper, we propose a new video streaming protocol called LayeredCast main features of which are: 1) Hybrid: Drawbacks of the simple approaches are compensated using a hybrid of mesh and tree overlays. 2) Layered Video: Provides an adaptive scheme...
SLoPCloud: an efficient solution for locality problem in peer-to-peer cloud systems
, Article Algorithms ; Volume 11, Issue 10 , 2018 ; 19994893 (ISSN) ; Malekimajd, M ; Movaghar, A ; Sharif University of Technology
Abstract
Peer-to-Peer (P2P) cloud systems are becoming more popular due to the high computational capability, scalability, reliability, and efficient data sharing. However, sending and receiving a massive amount of data causes huge network traffic leading to significant communication delays. In P2P systems, a considerable amount of the mentioned traffic and delay is owing to the mismatch between the physical layer and the overlay layer, which is referred to as locality problem. To achieve higher performance and consequently resilience to failures, each peer has to make connections to geographically closer peers. To the best of our knowledge, locality problem is not considered in any well known P2P...
An overlay multicast protocol for multimedia applications in mobile ad-hoc networks
, Article 3rd IEEE Asia-Pacific Services Computing Conference, APSCC 2008, Yilan, 9 December 2008 through 12 December 2008 ; 2008 , Pages 162-167 ; 9780769534732 (ISBN) ; Rabiee, H. R ; Saremi, F ; Iranmanesh, Z ; Sharif University of Technology
IEEE Computer Society
2008
Abstract
Overlay multicast has gained much attention in recent years as an alternative method to network layer multicast, especially for mobile ad hoc networks (MANETs). In this paper, we propose a new overlay multicast protocol to achieve simplicity of deployment, rapid adaptation of overlay structure when nodes move, and reduced delay. In our algorithm, to join or leave a multicast group, it is only sufficient for a member node to inform its first upstream member node. This updates the tree structure more rapidly when nodes move. In addition, join and leave delays are reduced and this makes the protocol suitable for multimedia multicasting in MANETs. Simulation results compared to that of ODMRP and...