JXTA Technology Research Articles

Research and Design of P2P-SIP System Network Structure Based on JXTA

The network structure of P2P-SIP system based on JXTA is one of the core technologies in industrial intelligent Internet.JXTA is an open peer-to-peer platform, which provides basic application services for building P2P network. This paper chooses JXTA development platform to build P2P network, and then constructs SIP soft terminal on it. Firstly, it introduces the background knowledge, related research, P2P network technology, JXTA technology and SIP protocol. Then, the feasibility of p2p sip system is analyzed, including the combination of P2P and sip, network structure and framework structure. Then the routing mechanism of JXTA is deeply studied, including distributed index of shared resources, limited range traversal, dynamic view of sink node and loose and consistent distributed hash table (DHT). At the same time, this paper proposes an improvement strategy to overcome the shortcomings of JXTA routing mechanism such as limited range traversal and loose consistent DHT, that is, introducing the chord ring of consistent hash algorithm in the aggregation network layer. Based on the in-depth study of JXTA structured network and SIP protocol, a P2P SIP system is designed and implemented. The experimental results show that the system can maintain normal SIP communication without maintaining the central server.

Search technique to offering services supported on Multi-agent Systems and P2P network

The ability to find services in unstructured P2Pnetworks; it has become a difficult task execution bythe topology of the network, and the instability of thevarious servers that are not always available for service.It aims to develop a search technique supported onMulti-agent Systems to establish the behavior of thesesuper-nodes, the main disadvantage of these multiagentsystems is communication between agents in aP2P environment, to solve this limitation is to be usedthe protocols of the JXTA technology as a mediator andfacilitator in communications multi-agent system, thistechnique would give us the possibility to reach differentservers within the P2P network and incorporate thesenodes behavior by agents in the system.

Jxta 기반의 그룹 작업공간을 지원하는 스마트폰 협업 어플리케이션

JXTA technology is a set of open protocols that enable any connected device on the internet or MANET(Mobile Adhoc NETwork) to communicate in a P2P manner. In this paper, we present a JXTA-based smartphone collaborative application. For this, we define the core services and collaborative services necessary for a P2P network, and design proper protocols to support the services. The developed application provides the effective environment for group works in smartphones, supporting the various virtual workspaces. Since application supports the group works among users in close-range without relying on the mobile network, it could be very useful in various situations such as the disaster area.

Secure Communication Setup for a P2P-Based JXTA-Overlay Platform

At present, the maturity of the peer-to-peer (P2P) research field has pushed through new problems such as those related with security. For that reason, it is important to provide security mechanisms to P2P systems since security is one of the key issues when evaluating them. The JXTA-Overlay project is an effort to use JXTA technology to cater to a generic set of functionalities that can be used by developers to deploy P2P applications. However, since its design focused on issues such as scalability or overall performance, it did not take security into account. This paper proposes a security framework specifically suited to JXTA-Overlay's idiosyncrasies. The main features of the proposal presented in this paper include a completely modular approach which may cater to a broad set of scenarios, an effective secure key distribution method, and a hybrid key-authenticity scheme which balances the need for meaningful information at the end-user level and simplicity at the lower middleware layers.

A pure P2P synchronous collaborative system

This paper presents design and implementation of a collaborative system, called Decentralised Synchronous Collaboration (DSC), based on a pure P2P architecture without using any server at all. It relies on group agents located on peers' computers to coordinate group as well as peer management, and provides a message handler to deal with the correct message passing directly among group peers. DSC is implemented using JXTA technology that includes virtual JXTA networks, a set of standard protocols and basic services to let peers finding each other, forming groups, and exchanging messages across firewalls and Network Address Translators (NATs).

Jxta-Overlay: An interface for efficient peer selection in P2P JXTA-based systems

In this paper we address the problem of the efficient peer selection in P2P distributed platforms. To this end, we have developed a P2P distributed platform using Sun's JXTA technology, which is endowed with resource brokerage strategies to efficiently select peers using four selection models: (a) economic scheduling model; (b) priced-based model; (c) peer-priority selection model; and, (d) random selection model. Next, we have deployed the P2P platform in a real network using nodes of the PlanetLab and have experimentally evaluated the performance of the peer selection models. The P2P platform offers a user-friendly interface for efficient peer selection and configuration of the P2P platform.

A distributed JXTA-based architecture for searching and retrieving solar data

This paper describes a hybrid distributed architecture, based on the JXTA technology, for searching and discovering data in a federation of solar observation archives. This work has been developed within the European project EGSO (European Grid of Solar Observations) with the intent of studying and analyzing a set of technologies and showing the brokerage capabilities of a highly controlled distributed network topology. Three roles have been identified: providers that contain data and metadata, brokers that manage providers and user queries, and consumers/clients. JXTA is used to develop all network system functionalities, while a native XML database is used to store resource descriptions.

JXTA: a network programming environment

JXTA technology, from Sun Microsystems, is a network programming and computing platform that is designed to solve a number of problems in modern distributed computing, especially in the area broadly referred to as peer-to-peer (P2P) computing or P2P networking. JXTA provides a network programming platform specifically designed to be the foundation for P2P systems. As a set of protocols, the technology stays away from APIs and remains independent of programming languages. This means that heterogeneous devices with completely different software stacks can interoperate through JXTA protocols. JXTA technology is also independent of transport protocols. It can be implemented on top of TCP/IP, HTTP, Bluetooth, HomePNA, and many other protocols.