Overlay networks have emerged as a fundamental technique for efficient data dissemination. Current overlay construction techniques typically face a number of limitations, including: i) limited scalability because of reliance upon global knowledge, and ii) performance characteristics targeting the requirements of a particular class of applications. In this paper, we propose dynamically organizin...

Due to the growing demand for high definition music and video content, an overlay multicasting providing live streaming services has been gaining popularity over last years. In this paper, we focus on applying the overlay multicasting for delivering of critical data that require to be transmitted safely, intact and with as little delay as possible, e.g., financial data, software security patche...

Multicast can be done on link layer, IP layer, and application layer respectively. The application level overlay multicast is easier to deploy as compared to non overlay multicast but at the cost of efficiency. However, the utilization of these approaches is limited by current Internet architecture. Overlay and non overlay integrated solution have not yet been proposed for hybrid networks. In t...

This paper addresses the problem of building scalable semantic overlay networks. Our approach follows the principle of data independence by separating a logical layer, the semantic overlay for managing and mapping data and metadata schemas, from a physical layer consisting of a structured peer-to-peer overlay network for efficient routing of messages. The physical layer is used to implement var...

In this paper, we address the challenge of overlay topology design by considering which overlay topology best minimizes cost function, taking into account overlay link creation cost and routing cost. First, we formulate the problem as Integer Linear Programming (ILP) given a traffic matrix and assuming cooperative behavior of nodes. Then, we propose some heuristics to find near-optimal overlay ...

Several recently emerged Internet services make use of application-level or overlay networks. Examples of such services include overlay multicast, structured peer-topeer lookup services, and peer-to-peer file sharing. Many of these services could benefit from enabling participating end hosts to estimate their relative network locations within the overlay. In this thesis, we present PCoord, a pe...

Establishing an appropriate semantic overlay on Peer-to-Peer networks to obtain both semantic ability and scalability is a challenge. Current DHT-based P2P networks are limited in their ability to support semantic search. This paper proposes the DST (Distributed Suffix Tree) overlay as the intermediate layer between the DHT overlay and the semantic overlay. The DST overlay supports search of ke...

In this paper we propose a novel overlay network, named CellFarm, which features an unique topology composed of cliques of nodes, highly connected among themselves. Each clique supports the abstraction of a fault-tolerant process group. Dependable applications can then be implemented using the resulting overlay of process groups. CellFarm has a completely decentralized operation, is scalable, a...

Received: 05/06/2008 Accepted: 06/07/2008 Kyrgidis A, Vahtsevanos K. Novel evidence on bisphosphonate related osteochemonecrosis of the jaws suggests tooth extractions and overdentures as risk factors. Med Oral Patol Oral Cir Bucal. 2009 Jan 1;14 (1):E1-2. © Medicina Oral S. L. C.I.F. B 96689336 ISSN 1698-6946 http://www.medicinaoral.com/medoralfree01/v14i1/medoralv14i1p1.pdf Indexed in: -Index...