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A Message Ferrying Approach for Data Delivery in Sparse Mobile Ad Hoc Networks

机译:稀疏移动自组织网络中数据传递的消息传递方法

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Mobile Ad Hoc Networks (MANETs) provide rapidly deployable and self-configuring network capacity required in many critical applications, e.g., battlefields, disaster relief and wide area sensing. In this paper we study the problem of efficient data delivery in sparse MANETs where network partitions can last for a significant period. Previous approaches rely on the use of either long range communication which leads to rapid draining of nodes' limited batteries, or existing node mobility which results in low data delivery rates and large delays. In this paper, we describe a Message Ferrying (MF) approach to address the problem. MF is a mobility-assisted approach which utilizes a set of special mobile nodes called message ferries (or ferries for short) to provide communication service for nodes in the deployment area. The main idea behind the MF approach is to introduce non-randomness in the movement of nodes and exploit such non-randomness to help deliver data. We study two variations of MF, depending on whether ferries or nodes initiate proactive movement. The MF design exploits mobility to improve data delivery performance and reduce energy consumption in nodes. We evaluate the performance of MF via extensive ns simulations which confirm the MF approach is efficient in both data delivery and energy consumption under a variety of network conditions.
机译:移动自组织网络(MANET)提供了许多关键应用(例如战场,救灾和广域传感)中所需的可快速部署和自配置的网络容量。在本文中,我们研究了稀疏MANET中有效的数据传递问题,在这些稀疏的MANET中,网络分区可能会持续很长时间。先前的方法依赖于使用长距离通信(这会导致节点有限的电池快速耗尽),或者使用现有的节点移动性(这会导致较低的数据传输速率和较大的延迟)。在本文中,我们描述了一种消息传递(MF)方法来解决该问题。 MF是一种移动辅助方法,它利用一组称为消息渡轮(或简称渡轮)的特殊移动节点为部署区域中的节点提供通信服务。 MF方法背后的主要思想是在节点移动中引入非随机性,并利用这种非随机性来帮助传递数据。我们研究了MF的两种变体,具体取决于渡轮或节点是否启动主动运动。 MF设计利用移动性来提高数据传递性能并减少节点的能耗。我们通过大量的ns仿真评估MF的性能,这些仿真证实了MF方法在各种网络条件下在数据传输和能耗方面都是有效的。

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