Integrated Buffer and Route Management in a DTN with Message Ferry
Integrated Buffer and Route Management in a DTN with Message Ferry
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DOI：
10.6688/jise.2007.23.4.11
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发表时间：
2006-10
期刊：
影响因子：
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通讯作者：
M. Chuah;Wenbin Ma
中科院分区：
文献类型：
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作者：
M. Chuah;Wenbin Ma
与普通的无线自组织网络不同，端到端连接可能不存在于DTN中。因此，消息传送(MF)方案被提出为在容忍中断网络S中提供连通性的一种策略，其中一组称为摆渡的节点负责为网络中的所有节点传送消息。在这种存储转发网络中，渡口和常规节点的缓冲区成为关键资源，需要在不同的用户之间公平地分配。本文提出了一种带消息摆渡的DTN的最大-最小公平模型。基于该模型，我们提出了一种能够实现不同会话间公平性的缓冲区分配方案。我们还设计了一种集成的缓存和路由管理方案，称为缓冲区高效路由方案(BERS)。通过仿真，我们证明了我们的公平缓冲区分配方案公平地将缓冲区分配给不同的会话。我们的模拟研究还表明，BERS可以获得更高的会话吞吐量和更低的分组传递延迟，而不是通常用于消息传送系统的只存储转发的路由方案
Unlike normal wireless ad hoc networks, end-to-end connection may not exist in DTNs. Thus, the message ferrying (MF) scheme has been proposed as a strategy for providing connectivity in disruption tolerant network (DTN)s, where a set of nodes called ferries are responsible for carrying messages for all nodes in the networks. In such store-and-forward networks, buffers at ferry and regular nodes become critical resources and need to be allocated fairly among different users. In this paper, we propose a max-min fairness model for a DTN with a message ferry. Based on this model, we propose a buffer allocation scheme that can achieve fairness among different sessions. We also design an integrated buffer and routing management scheme called buffer efficient routing scheme (BERS). Via simulations, we demonstrate that our fair buffer allocation scheme assigns buffers fairly to different sessions. Our simulation studies also show that BERS can achieve higher session throughput and lower packet delivery latency than the only-store-and-forward routing scheme that is typically used in a message ferry system