Abstract
为了得到能量高效、具有高可靠性的数据通信链路,在比较几种不同通信方案的链路可靠性的基础上,提出了一种基于虚拟网格单元的高可靠性路由算法(grid-based high reliability routing,简称GHRR).算法为每个网格及其簇头节点分配一个虚拟ID,节点根据该ID自主选择其多个下一跳头节点,使数据的多个拷贝在朝向sink方向上交错传播,从而提高数据传输的可靠性.通过分析及仿真进一步表明,算法提高了路由的可靠性,并具有更小的时间延迟.;In order to achieve an efficient and highly reliable data delivery channel, this paper present a grid-based high reliability routing (GHRR) after comparing some communication schemes and their reliability. GHRR assign a virtual ID for every grid and its cluster head. After that, the node selects its next hop nodes by itself according to the assigned virtual ID. Multiple copies of data are interleaved transmitted directly to sink. As a result, the reliability of data delivery is enhanced. The performances of GHRR has been evaluated through both analysis and extensive simulation. They show that GHRR yields an improvement in enhancing reliability and reducing time delay.
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