This paper describes an infrastructure for the deployment and use of Web Services that are resilient to the failure of the nodes that host those services. The infrastructure presents a single interface that provides mechanisms for users to publish services and to find the services that are hosted. The infrastructure supports the autonomic deployment of services and the brokerage of hosts on whi...

Peer-to-peer networks can be divided into structured and unstructured based on their overlay topologies. In reality, unstructured p2p networks with superpeers have proved their capacities to support millions of users simultaneously. However, applications deployed on this kind of overlay networks, such as file-sharing, require flooding or gossip-based message routing, which puts more overhead on...

We propose reverse-query mechanism to deliver broadband contents over unstructured overlay network. Due to the nature of scale-free network, newly defined reverse-query message will cover more than 80% of all the clients, with relaying reverse-query message under probability as low as 10%, being effective to reduce the total traffic generated by query propagation. This platform is built on perc...

A significant part of the Internet traffic today is generated by peer-to-peer (P2P) applications used originally for file sharing, and more recently for real-time communications and live media streaming. Such applications discover a route to each other through an overlay network with little knowledge of the underlying network topology. As a result, they may choose peers based on information ded...

In this paper we present the AlvisP2P IR engine, which enables efficient retrieval with multi-keyword queries from a global document collection available in a P2P network. In such a network, each peer publishes its local index and invests a part of its local computing resources (storage, CPU, bandwidth) to maintain a fraction of a global P2P index. This investment is rewarded by the network-wid...

This paper discusses and evaluates the design and the implementation of a Community-centric Mobile Service Environment (COMSE), where all services are developed with Web technologies. The service environment is built on a distributed communication platform that is implemented using a DHT-based peer-to-peer (P2P) protocol. The interaction between P2P overlay networks and Web-based services is re...

Peer-to-Peer (P2P) content sharing systems have experienced an explosive growth, and now dominate large fractions of both the Internet users and traffic volume. However, due to the self-organization and self-maintenance nature of P2P overlay networks, these systems are vulnerable to the content pollution, where attackers aggressively inject a large quantity of polluted content into the systems....

Real-time peer-to-peer (P2P) streaming video traffic will constitute a significant proportion of future Internet traffic. With the availability of WiMAX, a large number of these peers will be ubiquitous and located on WiMAX based mobile nodes across the Internet. This chapter proposed a framework for providing quality of service (QoS) to the overlay P2P network over a WiMAX infrastructure. The ...

In this paper, we propose DINPeer to support both collaborative visualization and collaborative computing by overcoming limitations in current collaborative tools and peer-to-peer (P2P) overlay systems. DINPeer exploits a spiral-ring method to discover an inner ring with relative largest bandwidth to form a DINloop (Data-In-Network loop). DINPeer further integrates DINloop with P2P overlay netw...

Application-level peer-to-peer (P2P) network overlays are an emerging paradigm that facilitates decentralization and flexibility in the scalable deployment of applications such as group communication, content delivery, and data sharing. However the construction of the overlay graph topology optimized for low latency, low link and node stress and lookup performance is still an open problem. We p...