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...
Post on 19-Dec-2015
247 views
TRANSCRIPT
![Page 1: 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](https://reader030.vdocuments.net/reader030/viewer/2022033016/56649d3a5503460f94a143a6/html5/thumbnails/1.jpg)
1
後卓越計畫進度報告曾煜棋老師實驗室
![Page 2: 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](https://reader030.vdocuments.net/reader030/viewer/2022033016/56649d3a5503460f94a143a6/html5/thumbnails/2.jpg)
2
A Link-layer Protocol for Event-driven WSNs
Joint two subissues Exploiting the spatial correlation of sensor
data Designing a specific MAC protocol
Sink
![Page 3: 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](https://reader030.vdocuments.net/reader030/viewer/2022033016/56649d3a5503460f94a143a6/html5/thumbnails/3.jpg)
3
Basic IdeaSink
TDMA
CSMA
Built on top of any CSMA-based protocol
A CSMA-basedMAC Protocol
![Page 4: 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](https://reader030.vdocuments.net/reader030/viewer/2022033016/56649d3a5503460f94a143a6/html5/thumbnails/4.jpg)
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)
![Page 5: 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](https://reader030.vdocuments.net/reader030/viewer/2022033016/56649d3a5503460f94a143a6/html5/thumbnails/5.jpg)
5
Simulation Results
0%
20%
40%
60%
80%
100%
120%
1 2 3 4 5
MAX_LEVEL
Suc
cess
Rat
e
CSMA CSMA-SSC SCMAC-SSC-TSA
SCMAC-TSA SCMAC-SSC SCMAC
0
1
2
3
4
5
6
1 2 3 4 5
MAX_LEVEL
Ave
rage
Del
ay (
seco
nds)
CSMA CSMA-SSC SCMAC-SSC-TSA
SCMAC-TSA SCMAC-SSC SCMAC
0%
300%
600%
900%
1200%
1 2 3 4 5
MAX_LEVEL
Red
unda
nce
CSMA CSMA-SSC SCMAC-SSC-TSA
SCMAC-TSA SCMAC-SSC SCMAC
0%
20%
40%
60%
80%
100%
120%
1 2 3 4 5
MAX_LEVEL
Cov
erag
e
CSMA CSMA-SSC SCMAC-SSC-TSA
SCMAC-TSA SCMAC-SSC SCMAC
![Page 6: 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](https://reader030.vdocuments.net/reader030/viewer/2022033016/56649d3a5503460f94a143a6/html5/thumbnails/6.jpg)
6
Implementation