笛卡尔自组织路由协议(Cartesian Ad hoc Routing Protocols, CARP)中节点密度的评估

I. Raza, M. Raza
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引用次数: 0

摘要

随着地理定位系统(GPS)技术的飞速发展,地理路由类的MANET协议成为近年来研究的热点。Cartesian Ad hoc Routing Protocols (CARP)是一组三种自适应无连接协议,用于解决MANET中的路由和功耗问题。这些协议用于限制逻辑传输区域内转发节点的数量。在CARP中,自组织网络的密度被认为是一个网络参数,在计算中用来形成一个逻辑传输区域。CARP假设节点对网络先前活动的密度有一定的了解,但没有描述具体的密度决定机制。本文提出了一种基于位置感知节点的密度决定机制。由于节点是位置感知的,因此将位置信息作为关键参数对节点进行普查。在实现了CARP的网络中,节点可以使用这个密度值来形成逻辑广播区域。由于MANET中的节点可能处于运动状态,因此密度可能会随时间而变化。该算法还可以随时间跟踪密度值,并根据网络的情况进行更新。在OPNET Modeler 10.5中的仿真结果验证了该密度确定算法在CARP中的性能
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Assessment of node density in Cartesian Ad hoc Routing Protocols (CARP)
With the rapid development in the geographical positioning system (GPS) technology, the geographical routing category of the MANET protocols has recently been a hot research area. The Cartesian Ad hoc Routing Protocols (CARP) are a set of three adaptive and connectionless protocols that address the problem of routing and power consumption in MANET. These protocols are used to limit the number of forwarding nodes in a logical transmission area. Density of an ad hoc network is considered a network parameter in CARP, and is used in the calculations to form a logical transmission area. The CARP assume that the nodes have some knowledge about the density from previous activity of the network, but no specific density determining mechanism has been described. This research paper presents a density determining mechanism for location aware nodes that use CARP. As the nodes are location aware, the location information is used as a key parameter to conduct a census of nodes. The nodes in a network with implementation of CARP can use this density value to form the logical broadcast area. As the nodes in MANET are potentially in motion, density may change over time. The proposed algorithm also tracks the density value over time and keeps it updated as per situation of the network. The simulation results in OPNET Modeler 10.5 validate the performance of this density determining algorithm for CARP
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