1 後卓越計畫進度報告曾煜棋老師實驗室. 2 A Link-layer Protocol for Event-driven WSNs Joint two subissues Exploiting the spatial correlation of sensor data Designing a.

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Presentation transcript:

1 後卓越計畫進度報告曾煜棋老師實驗室

2 A Link-layer Protocol for Event-driven WSNs Joint two subissues Exploiting the spatial correlation of sensor data Designing a specific MAC protocol

3 Basic Idea Built on top of any CSMA-based protocol A CSMA-based MAC Protocol

4 Proposed Solution Two modes ES mode & NES mode Issues involved in the ES mode Entering the ES Mode The first slot stars on-the-fly in an event-driven manner Slot Assignment Slot Size Synchronization Leaving the ES Mode Energy efficiency Combine our protocol with the LPL (Low Power Listening) Chih-Yu Lin, Yu-Chee Tseng, and Ten-Hwang Lai, “Exploiting Spatial Correlation on the Link Layer for Event-driven Sensor Networks” (Submitted to INFOCOM 2008)

5 Simulation Results

6 Implementation