For nodes’ mobility in mobile P2P networks and the consistency of overlay network, an unstructured Modified Gnutella-like P2P protocol (M-GIA) is proposed in this paper. The advantage of GIA protocol is presented fully, while the physical location information of nodes and the distance between nodes as parameters are added into the GIA protocol. The distance between two nodes can decide logical ...

Peer-to-Peer (P2P) networks without central entities, such as Gnutella or JXTA, generally suffer from a high signaling load resulting in poor efficiency. The main reason therefore is the flooding of search requests in the overlay, since in most P2P protocols the nodes are not aware of the P2P overlay network topology. Especially for resource constrained environments such as mobile communication...

The advent of the Internet has made the transfer of data between people easier and more efficient. One specific and popular application of this process is the peer-to-peer(P2P) network. P2P networks are an overlay network on top of the Internet’s topology and accounts for a large portion of Internet traffic[24]. The basic idea of a P2P network is that individual peers can connect to a set of ot...

This work describes a novel location-aware, self-organizing, fault-tolerant peer-to-peer (P2P) overlay network, referred to as Laptop. Network locality-aware considerations are a very important metric for designing a P2P overlay network. Several network proximity schemes have been proposed to enhance the routing efficiency of existing DHT-based overlay networks. However, these schemes have some...

In this paper, we evaluate a P2P community management system that works on top of a DHT-based P2PSIP protocol implementation. The key idea in our system is to establish a separate DHT overlay network for each community, resulting in multiple small overlays that are subsets of the main overlay. The main DHT overlay is largely used for community and membership information discovery. The feasibili...

One fundamental problem that confronts information retrieval is to efficiently support query with higher accuracy and less logic hops. This paper presents HSPIR (Hierarchical Semantic P2P-based Information Retrieval) that distributes document indices through the P2P network hierarchically based on documents semantics generated by Latent Semantic Indexing (LSI) [1]. HSPIR uses CAN [2] and Range ...

Structured peer-to-peer (P2P) overlay are scalable, robust and self-organizing in nature, and provide a promising platform for a range of large-scale distributed applications. Applications proposed to date utilize a similar key-based routing service but “re-invent the wheel” by deploying their own dedicated structured P2P overlay network. This is highly inefficient and results in a significant ...

The utilization of peer-to-peer (P2P) overlay networks on mobile ad hoc networks (MANET) introduces new services and possibilities such as context based routing and location based services (LBS). A simple layering of both networks is inefficient and does not scale well because the virtual P2P overlay network does not match the frequently changing physical network topology of the MANET. The Mobi...

Peer-to-peer (P2P) systems are used by millions of users every day. In many scenarios, it is desirable for the users from di erent P2P systems to communicate and exchange content or services with each other. This requires co-operation between the P2P systems, which is often di cult or impossible, due to the two following reasons. First is the lack of an inter-overlay routing infrastructure thro...