fuzzyForward: A Novel Multi-hop Data Forwarding Scheme Using Fuzzy Decision for Edge VANETs

Vehicular Ad Hoc Networks (VANETs) hold the opportunity to help improve safe driving and road efficiency. There are great uncertainty and unpredictability in VANETs due to rapid vehicle movement and changeable road conditions, which makes designing a Quality of Service (QoS) aware data forwarding protocol for VANETs remain a significant challenge. In this paper, A novel fuzzy decision based data forwarding scheme is proposed to meet the QoS requirements of high reliability and low latency. Unlike the existing routing methods, fuzzy information instead of raw vehicular data is used for data forwarding decisions. Besides, fuzzy decision strategies based on fuzzy non-dominate optimization and fuzzy rules are devised for selecting roads at junctions and determining relay vehicles at edge vehicles. Experimental results show that our fuzzy forwarding scheme achieves desirable QoS performance in terms of packet arrival rate, end-to-end delay and communication overhead.

I. Introduction

As the core part of both Intelligent Transport Systems (ITS) and smart city, Vehicular Ad Hoc Networks (VANETs) enable the real-time connection between vehicles and X (X refers to vehicles, roadside facilities, pedestrians and service platforms) through a new generation of wireless communication technology (e.g., DSRC [1] and C-V2X/NRV2X [2]). This in turn fulfills users’ demands on road traffic efficiency, autonomous driving, and on-wheel infotainment services.