Firefly-based Optimized Link State Routing Protocol for Energy-Efficient Vehicular Ad Hoc Networks

Abstract

Vehicular ad hoc networks (VANET), a burgeoning technology within the wireless technology field, hold great promise. As it continues its progress, it stands ready to make increasingly significant contributions to advancing intelligent transportation systems in the foreseeable future. The scale of infrastructure, the number of vehicles, the complexity of scenarios, and the mobility of nodes can collectively contribute to heightened energy consumption during route selection between source and destination nodes, as well as during the transmission of application packets. VANET opts for routes containing a minimal count of intermediary nodes to reach the intended destination efficiently. With the expansion of the distance between nodes, there is a proportional increase in the requirement for broadcast power. The power capacity of the nodes directly influences the ease of establishing a route between two nodes. In this paper, we proposed a Firefly Optimized Link State Routing (F-OLSR) protocol, which utilizes swarm intelligence principles through the firefly algorithm (FFA). The goal is to enhance energy efficiency within an Optimized Link State Routing (OLSR) framework. The route is chosen depending on the amount of power the intermediary nodes between the source and destination nodes. The evaluation performance of the F-OLSR protocol was compared with that of popular protocols. The F-OLSR protocol was demonstrated to be an effective solution for choosing the optimal path with high power from source to destination and improving performance. Regarding energy consumption, the F-OLSR protocol achieved 2.30% and 2.31% concerning the packet size and node speed, which is better results than in terms of packet size and node speed, which is a better result than the other protocols.