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

Transcript

1. 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
2. Introduction •  VANET module: MOVE –  MObility model generator for VEhicular networks •  AODV+ –  use AODV for simulations of wired-cum-wireless scenarios
3. 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
4. Experiment Design •  Car numbers –  9, 26, 32, 44, 55, 65 •  AP numbers –  0, 4, 9(3x3), 16, 25, …, 100 •  Random traffic –  Using MOVE
5. Modification •  AODV+ does not work –  wired <--> wireless –  wireless -> wired -> wireless ? •  Alternative –  motionless cars act as APs
6. Performance •  Success ratio •  Pong RTT –  Average –  Standard deviation
7. •  In XGraph Success ratio
8. •  In XGraph Average
9. •  In XGraph Standard Deviation
10. 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
11. Conclusion •  Too much water drowned the miller –  When mobility and density is low, AP counts •  Trade-off –  High transmission rate –  Extra routing table overhead
12. Q  &  A
13. Thank  you