Acta Metallurgica Sinica(English letters) ›› 2014, Vol. 21 ›› Issue (4): 32-39.doi: 10.1016/S1005-8885(14)60313-7

• Networks • Previous Articles     Next Articles

Road traffic and geography topology based opportunistic routing for VANETs


  1. 1. State Key Laboratory of Networking and Switching technology, Beijing University of Posts and Telecommunications, Beijing 100876, China 2. College of Information, Hebei United University, Tangshan 063000, China
  • Received:2014-04-01 Revised:2014-05-10 Online:2014-08-31 Published:2014-08-30
  • Contact: Wen Dong Wang

Abstract: The message delivery ratio and transmission delay is affected deeply by road traffic flow in vehicular ad hoc networks (VANETs). An opportunistic routing based on geography and road traffic flow for VANETs (ORRIS) was proposed. ORRIS leverages the knowledge of geography positions, motion vectors and road traffic flows. In order to estimate the traffic flow density, the history of encounter number of the vehicles in the opposite direction is considered in ORRIS. The forwarding decisions are made by distributed vehicles based on the geography topology and the road traffic flow. The real map based simulation results show that ORRIS has a better performance than other algorithms, especially when the road traffic is busy or the traffic flow rates have great differences between roads.

Key words: VANETs, traffic flow, opportunistic routing, geography topology

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