1.5.6 Geographical requirement Each vehicle and fixed facility in the network scenario not only have logical identification like id number, but also have geographical meaning Some applications require to communicate with nodes in specific area
1.5.6 Geographical requirement ◼ Each vehicle and fixed facility in the network scenario not only have logical identification like ID number, but also have geographical meaning ◼ Some applications require to communicate with nodes in specific area
2 Fundamental issues 2. 1 Node-evel issues 2.2 Street-level issues
2 Fundamental Issues 2.1 Node-level Issues 2.2 Street-level Issues
2. 1 Node-level issues a How to organize and compose the entire network with nodes Consider higher mobility of vehicles and limitation of distribution Node-level Issues Mobility Link Traffic Prediction Quality Load
2.1 Node-level Issues ◼ How to organize and compose the entire network with nodes ◼ Consider higher mobility of vehicles and limitation of distribution Node-level Issues Traffic Load Link Quality Mobility Prediction
2. 1. 1 Mobility Prediction The behaviors of vehicles can be predicted Depend on the drivers inside and the mobility of nodes Consider nodes mobility and the lifetime of the links among vehicles Enhance the adaptation of routing decision in high-dynamic vehicular environment
2.1.1 Mobility Prediction ◼ The behaviors of vehicles can be predicted ◼ Depend on the drivers inside and the mobility of nodes ◼ Consider nodes mobility and the lifetime of the links among vehicles ◼ Enhance the adaptation of routing decision in high-dynamic vehicular environment
2.1.2 Link Quality Aggregated distribution of vehicles Induce the contention problems of accessing to shared wireless channel The interference and the signal fading Affect the successful transmission on links Uniform the link quality and the routing progress Help to optimize the whole routing performance
2.1.2 Link Quality ◼ Aggregated distribution of vehicles ◼ Induce the contention problems of accessing to shared wireless channel ◼ The interference and the signal fading ◼ Affect the successful transmission on links ◼ Uniform the link quality and the routing progress ◼ Help to optimize the whole routing performance