Affiliation:
1. Department of Computer and Electrical Engineering and Computer Science, College of Engineering and Computer Science, Florida Atlantic University, Boca Raton, FL 33431, USA
Abstract
In vehicle ad hoc networks (VANETs), a beacon is a periodic message sent to nearby vehicles containing essential details like the sender’s vehicle ID, location, speed, and direction. Maintaining the freshness of this information without causing network congestion requires adaptive beaconing to adjust to changes in mobility and network density. Our research, based on extensive simulation experiments, identifies specific parameter sets optimal for adapting beaconing rates to different scenarios. From this analysis, we introduce a novel scheme called high-awareness and channel-efficient adaptive beaconing (HACEAB), employing fuzzy logic to adapt to various environments and conditions. Initially, the protocol gauges network density using an adaptive threshold function, followed by estimating the node spatial distribution through the quadrat statistic method to discern uniform distribution or clustering. Utilizing these data, the protocol adjusts beaconing rates via appropriate input parameters for the fuzzy logic system. Remarkably, HACEAB represents the first beaconing scheme capable of simultaneously adjusting to changes in network density and spatial distribution. Furthermore, the protocol enhances performance by adapting transmission power to fluctuations in node density and distribution. NS-3 simulations validate the efficacy of these improvements.
Reference65 articles.
1. de Souza, A.M., Yokoyama, R.S., Botega, L.C., Meneguette, R.I., and Villas, L.A. (2015, January 26–28). Scorpion: A solution using cooperative rerouting to prevent congestion and improve traffic condition. Proceedings of the 2015 IEEE International Conference on Computer and Information Technology, Ubiquitous Computing and Communications, Dependable, Autonomic and Secure Computing, Pervasive Intelligence and Computing (CIT/IUCC/DASC/PICOM), Liverpool, UK.
2. A comprehensive survey on vehicular ad hoc network;Zedan;J. Netw. Comput. Appl.,2014
3. Vehicular networking: A survey and tutorial on requirements, architectures, challenges, standards and solutions;Karagiannis;IEEE Commun. Surv. Tutor.,2011
4. (2010). Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications Amendment 6: Wireless Access in Vehicular Environments (Standard No. IEEE 802.11p-2010).
5. The CAMP Vehicle Safety Communications Consortium Consisting of BMW, DaimlerChrysler, Ford, GM, Nissan, Toyota, and VW (2005). Vehicle Safety Communications Project: Task 3 Final Report: Identify Intelligent Vehicle Safety Applications Enabled by DSRC.