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	Message forwarding in cyclic MobiSpace: The multi-copy case
	Cong Liu; lie Wu; Ionut Cardei
	2009
会议名称	2009 IEEE 6th International Conference on Mobile Adhoc and Sensor Systems, MASS '09
英文摘要	A key challenge of message forwarding in delay tolerant networks (DTNs) is to increase delivery rate and decrease delay and cost. When information for future connectivity is not available, opportunistic routing is preferred in DTNs in which messages are forwarded opportunistic (non-deterministically) to nodes with higher delivery probabilities. Many real objects have non-deterministic but cyclic motions; however, few prior research work has investigated a multi-copy opportunistic message forwarding algorithm for DTNs with cyclic mobility patterns. CyclicMobiSpace is a generalization of DTNs with cyclic mobility patterns. In this paper, we propose an optimal opportunistic multi-copy messageforwarding algorithm in Cyclic MobiSpace. Specifically, we model a Cyclic MobiSpace as a state-space graph, and apply the optimal stopping rule to derive a delivery metric for each message state using the state-space graph. We perform simulations to compare our protocol, called MulticopyForwarding in Cyclic MobiSpace (MFC), against existing forwarding protocols using UMassDieselNet trace. Simulation results show that MFC delivers up to 100% more messages than the compared forwarding protocols under the same delay and forwarding cost.
收录类别	EI
语种	英语
内容类型	会议论文
源URL	[http://ir.siat.ac.cn:8080/handle/172644/2648]
专题	深圳先进技术研究院_数字所
作者单位	2009
推荐引用方式 GB/T 7714	Cong Liu,lie Wu,Ionut Cardei. Message forwarding in cyclic MobiSpace: The multi-copy case[C]. 见:2009 IEEE 6th International Conference on Mobile Adhoc and Sensor Systems, MASS '09.

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