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URN etd-0822112-173103 Statistics This thesis had been viewed 1493 times. Download 446 times. Author Ssu-Chi Kuai Author's Email Address No Public. Department Information Management Year 2011 Semester 2 Degree Master Type of Document Master's Thesis Language Chinese&English Page Count 65 Title An Energy-Efficient Data Collection Mechanism with Mobile Sinks for Wireless Sensor Networks Keyword data collection mobile sink wireless sensor ne wireless sensor ne mobile sink data collection Abstract For wireless sensor networks (WSNs), mobile sink is an effective approach to extending network lifetime. In underwater or disconnected network, multi-hop routing mechanism is not applicable because of long transmission delay, high error rate, or disconnected network. Hence, it is necessary to use mobile sinks in order to collect data. In this paper, we consider the problem of collecting data from each sensor into the mobile sinks with energy constraints. We formulate the tour planning of mobile sinks collecting sensor data to the ellipse graph. Our scheme is to minimize the distance of the total tour and the total energy consumption, while satisfying the energy constraint of the mobile sinks. Simulation results show that our scheme can effectively collect sensor data. Advisor Committee Wen-Hwa Liao - advisor
Chang, Chia-Ming - co-chair
Chih-Yung Chang - co-chair
Files Date of Defense 2012-07-20 Date of Submission 2012-08-24