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VANET Simulation of AP assistance
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Andro Chen Chun-An
June 13, 2011
Research
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40
VANET Simulation of AP assistance
2011-06-13 VANET Simulation of AP assistance
Final Project of 無線網路導論, 魏宏宇副教授 @ NTUEE
Andro Chen Chun-An
June 13, 2011
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Transcript
VANET Simulation of AP Assistance AP協助下的車用無線網路模擬 B97901015 陳俊安 B97901087 林蓉瑄
B97901098 周伯威
Introduction • VANET module: MOVE – MObility model generator for
VEhicular networks • AODV+ – use AODV for simulations of wired-cum-wireless scenarios
Motive • Improve VANET performance – Using APs in the
city – Fast & reliable Ethernet • But “where are you?” – If we don’t use Mobile IP… • Implement AODV+ on both wired and wireless nodes
Experiment Design • Car numbers – 9, 26, 32, 44,
55, 65 • AP numbers – 0, 4, 9(3x3), 16, 25, …, 100 • Random traffic – Using MOVE
Modification • AODV+ does not work – wired <--> wireless
– wireless -> wired -> wireless ? • Alternative – motionless cars act as APs
Performance • Success ratio • Pong RTT – Average –
Standard deviation
• In XGraph Success ratio
• In XGraph Average
• In XGraph Standard Deviation
Graph analysis Cars # 9 26 32 44 55 65
Best AP # 9 16 16 9 9 9 Start to drop 81 36 49 36 36 36 Best AP#/Car# 1.00 0.62 0.50 0.20 0.16 0.14 Success ratio 83.26 94.78 90.68 92.68 92.93 96.18 Best = highest success ra.o
Conclusion • Too much water drowned the miller – When
mobility and density is low, AP counts • Trade-off – High transmission rate – Extra routing table overhead
Q & A
Thank you