Hybrid Optimization Technique for Enhancing QoS in Vehicular Ad-Hoc Networks
Keywords:
VANETs, Ad-Hoc Networks, Hybrid Optimization, Urban Vehicles Routing OptimizationAbstract
Vehicular Ad-hoc Networks (VANETs) facilitate communication over roadside mobile units to exchange information between Road-Side Unit (RSU) and On-Board Unit (OBU). Route selection and optimization are challenging in these network due to its variable speed and unpredictable location. Bio-Inspired Agent based route optimization intakes multi-constraint factors for improving the performance of the networks. The additive functions ExPA and FBA operate on multiple indexes in a sequential manner to optimize the network. This requires a higher control message flow that pauses the communication over a fixed interval of time. This causes earlier depletion of feasible solutions that degrade the network performance over the long run of communication. To prevent earlier solution depletion due to convergence, we propose fitness based adaptive metric for link selection and routing. This depends upon two factors; link stability and speed of the vehicle that must be balanced between the incoming request and communication dissemination. This helps to improve fitness based optimization throughout the transmission despite of the communication interval.
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