Implementation and Evaluation of JXTA-Overlay P2P System inHeterogeneous Environments

作为通信技术，有两种方式：一种是客户端-服务器系统，另一种是P2P系统。近年来，与P2P系统相关的应用越来越多，开辟了一个新的研究领域。在P2P的研究中，有很多工作是基于JXTA框架的。JXTA平台支持许多P2P服务和应用程序，用户可以以透明的方式使用它们。我们的平台JXTA- overlayay使用JXTA技术在JXTA之上构建一个覆盖层，提供一组基于JXTA的应用程序中最常用的基本功能。在本研究中，我们提出并实现了许多新的JXTA-Overlay功能，如：对等组功能、对等控制功能、对等组和任务功能、ic标签功能、用户在场功能和安全功能。基于智能算法，提出并实现了资源分配和对等可靠性的新功能。在应用方面，我们考虑了学习型P2P系统、机器人交互系统、车载网络和移动Ad-Hoc网络。

As communication technologies, there are two approaches: one is Client-Server system and the other one P2P systems. Recently, there are many applications related with P2P systems and they have opened a new field of research. In P2P research, there are many works which are based on JXTA framework. The JXTA platform support many P2P services and applications and the users can use them in a transparent way. Our platform JXTA-Overlayis an effort to use JXTA technology for building an overlay on top of JXTA offering a set of basic functionalities that are most commonly needed in JXTA-based applications. In this research, we proposed and implemented many new functions for JXTA-Overlay such as: Peer-Group function, Peer control function, Peer-Group and Task functions, IC-Tag function, user presence function and security functions. Also, based on Intelligent Algorithms, we proposed and implemented new functions for resource allocation and Peer Reliability. As applications, we considered -Leraning P2P system, Robots interaction system, Vehicular Networks and Mobile Ad-Hoc Networks.