Double-layered Mobile P2P Systems Using Energy-Efficient Routing Schemes

Jung-Suk Han, Jin-Woo Song, Taek-Hun Kim, Song-Bong Yang
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引用次数: 16

Abstract

As the mobile technology advances, various mobile peer-to-peer (P2P) systems have been developed. Since mobile devices have limited energy capacity, efficient use of the energy is indispensable for mobile P2P systems. In this paper, we propose an energy-efficient P2P system that is a type of the double-layered P2P systems in which files are searched mainly through the peers in the upper level, called super peers. The proposed system selects greedily the peers with more energy as super peers. The peers in the proposed system can identify themselves as super peers or sub-peers autonomously in a decentralized manner. We also propose three energy-efficient routing schemes, each of which is incorporated with the proposed system individually. The first routing scheme tries to utilize the energy of the peers on the routes more evenly, the second scheme chooses a route with the `strongest' peer among the peers each of which is the `weakest' peer on a route, and the last scheme selects a route with the second scheme among the routes with the smallest number of hops. Note that a routing scheme is applied each time when a route between a pair of super peers is chosen during the message transmission. Functionality and performances were evaluated through various experiments, and the results showed that the proposed P2P system with the third routing scheme improved the average network lifetimes by 368% and 22% over the double-layered and the proposed systems without applying any proposed scheme, respectively.
采用高能效路由方案的双层移动P2P系统
随着移动技术的进步,各种移动点对点(P2P)系统被开发出来。由于移动设备的能量容量有限,有效利用能量对于移动P2P系统来说是必不可少的。在本文中,我们提出了一种高效节能的P2P系统,它是一种双层P2P系统,在这种系统中,文件主要通过上层的超级对等体来搜索。该系统贪婪地选择能量较大的节点作为超级节点。系统中的节点可以以去中心化的方式自主识别自己为超级节点或子节点。我们还提出了三种节能路由方案,每一种方案都单独与所提出的系统相结合。第一种路由方案试图更均匀地利用路由上的对等体的能量,第二种路由方案在路由上“最弱”的对等体中选择“最强”的对等体,最后一种路由方案在路由上跳数最少的路由中选择第二种路由方案。请注意,每次在消息传输过程中选择一对超级对等体之间的路由时,都会应用一个路由方案。通过各种实验对功能和性能进行了评估,结果表明,采用第三种路由方案的P2P系统比未采用任何路由方案的双层系统和所提出的系统分别提高了368%和22%的平均网络寿命。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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