| Summary: | 碩士 === 國立成功大學 === 電腦與通信工程研究所 === 100 === DTN is an intermittently connected wireless ad hoc network with high error rates and long or variable delay caused by the traditional store-carry-forward message dissemination protocol. In this work, we propose a Social-Based Broadcasting message dissemination protocol which incorporates long range communication with broadcasting to reduce the end-to-end delay and increase reliability. To reduce delay, the long range communication enables the message to simultaneously disseminate from various locations. To increase reliability, we proposed a rebroadcast node selection mechanism to disseminate the message to as many nodes as possible per rebroadcast. To investigate the performance of our proposed method, we constructed two simulations: rebroadcast node selection performance simulation and overall message dissemination performance simulation. The extensive simulation results demonstrate that our proposed method is practical, scalable and cost-effective for message dissemination in a DTN.
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