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後卓越進度報告 蔡育仁老師實驗室 2006/07/10
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Non-uniform Deployment for Lifetime-based Sensor Networks Propose a non-uniform density for random deployment based on the distribution of power consumption to extend the lifetime of the whole network. Consider two WSN scenarios Multihop routing LEACH Server Line Server Multihop Routing LEACH
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Calculation of Desired Density at the Distance d from Server Iterative Density Calculation
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Numerical Result — Density of Deployment as a Function of d (Distance from Server) in 50 × 250 m 2 area Node Number = 200 Node Number = 500 Distance from Server ( 10m /unit) Normalized Density
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Simulation — Lifetime Comparison Node Number = 200 Node Number = 500 Rounds (Time steps) Number of alive nodes
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Simulation — Coverage Comparison Node Number = 200 Node Number = 500 Rounds (Time steps) Coverage Ratio
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