Performance Study of Routing Schemes in Delay Tolerant Network
Date Issued
2007
Date
2007
Author(s)
Lin, Chien-Hsiu
DOI
zh-TW
Abstract
In the conventional internet, it is assumed that there exists a fully connected path between any node pair at any time. In Delay Tolerant Network (DTN), however, nodes are wireless devices and mobile. Not only the connected path may be broken, but also nodes may be partitioned into two disconnected subsets, because of nodes’ movement. Thus, the data transmission service would not be satisfied by traditional routing schemes. However, it is still possible to communicate with each other in such network.
To efficiently route data in DTN, we propose an enhanced approach of the probabilistic routing scheme (PROPHET)[10]. Within a new evaluation method of delivery predictability, nodes can choose more proper relay nodes to increase delivery ratio as well as shorten transmission latency with lower transmission overhead. We also simulate some different routing schemes and analyze their performance to characterize the property about them.
Subjects
資料路由
機率路由
臨機網路
耐延遲網路
Data Routing
Probabilistic Routing
Delay Tolerant Network
Opportunistic Network
Type
thesis
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