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Homing-pigeon-based messaging: multiple pigeon-assisted delivery in delay-tolerant networks

机译：基于归巢鸽的消息传递：容忍网络中的多鸽辅助传递

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摘要

In this paper, we consider the applications of delay-tolerant networks (DTNs), where the nodes in a network are located in separated areas, and in each separated area, there exists (at least) an anchor node that provides regional network coverage for the nearby nodes. The anchor nodes are responsible for collecting and distributing messages for the nodes in the vicinity. This work proposes to use a set of messengers (named pigeons) that move around the network to deliver messages among multiple anchor nodes. Each source node (anchor node or Internet access point) owns multiple dedicated pigeons, and each pigeon takes a round trip starting from its home (i.e., the source) through the destination anchor nodes and then returns home, disseminating the messages on its way. We named this as a homing-pigeon-based messaging (HoPM) scheme. The HoPM scheme is different from the prior schemes in that each messenger is completely dedicated to its home node for providing messaging service. We obtained the average message delay of HoPM scheme in DTN through theoretical analysis with three different pigeon scheduling schemes. The analytical model was validated by simulations. We also studied the effects of several key parameters on the system performance and compared the results with previous solutions. The results allowed us to better understand the impacts of different scheduling schemes on the system performance of HoPM and demonstrated that our proposed scheme outperforms the previous ones.
机译：在本文中，我们考虑了时延容忍网络（DTN）的应用，其中网络中的节点位于单独的区域中，并且在每个单独的区域中，（至少）存在一个锚点，该锚点可为以下区域提供区域网络覆盖：附近的节点。锚节点负责为附近的节点收集和分发消息。这项工作建议使用一组在网络中移动的信使（称为鸽子）在多个锚点之间传递消息。每个源节点（锚节点或Internet接入点）拥有多只专用鸽子，每只鸽子从其家（即源）开始经过目的地锚点往返，然后返回家中，并在途中传播消息。我们将其命名为基于归巢鸽的消息传递（HoPM）方案。 HoPM方案与现有方案的不同之处在于，每个Messenger都完全专用于其本地节点以提供消息传递服务。通过对三种不同的鸽子调度方案的理论分析，我们获得了DTN中HoPM方案的平均消息延迟。通过仿真验证了分析模型。我们还研究了几个关键参数对系统性能的影响，并将结果与​​以前的解决方案进行了比较。结果使我们能够更好地理解不同调度方案对HoPM系统性能的影响，并证明我们提出的方案优于以前的方案。

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