# BBSF: Blockchain-Based Secure Weather Forecasting Information through Routing Protocol in Vanet
###### Abstract  
A vehicular ad hoc network (VANET) is a technique that uses vehicles with the ability to sense data from the environment and use it for their safety measures. Flooding is a commonly used term used for sending network packets. VANET may cause redundancy, delay, collision, and the incorrect receipt of the messages to their destination. Weather information is one of the most important types of information used for network control and provides an enhanced version of the network simulation environments. The network traffic delay and packet losses are the main problems identified inside the network. In this research, we propose a routing protocol which can transmit the weather forecasting information on demand based on source vehicle to destination vehicles, with the minimum number of hop counts, and provide significant control over network performance parameters. We propose a BBSF-based routing approach. The proposed technique effectively enhances the routing information and provides the secure and reliable service delivery of the network performance. The results taken from the network are based on hop count, network latency, network overhead, and packet delivery ratio. The results effectively show that the proposed technique is reliable in reducing the network latency, and that the hop count is minimized when transferring the weather information. weather forecasting; vehicular ad hoc network; routing; security 202323233233233232332323323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232323232332(RSU), and the reverse network, and these fall into two main categories: vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2I). V2V communication forms a wireless network that enables cars to exchange information, including safety warnings and traffic updates, and transmit data about their location, speed, displacement, direction, and stability [2]. The exchange of critical data between vehicles and road infrastructure through wireless communication is known as V2I. This communication is unidirectional, with the road infrastructure transmitting information to all vehicles. A proposed application of this system is to provide secure weather forecast information using VANETs. A VANET is a type of wireless multi-hop network (WMN) that facilitates quick technological advancements in diverse infrastructure management and improves the performance of various resources even in high-mobility scenarios. A VANET employs wireless communication and computing technologies in devices for intra-vehicle and inter-vehicle communication. Inter-vehicle communication via caching is a prospective domain for standardization, research, and technological development [1]. Vehicular ad hoc networks (VANETs) offer a broad spectrum of potential applications, including collision avoidance, safety measures, navigation scheduling, real-time traffic monitoring, and more. In addition, VANETs can provide internet connectivity to vehicular nodes, which is another significant use case. Figure 1 presents an illustration of a VANET [3]. The process of weather forecasting involves using technology and scientific knowledge to observe meteorological conditions and predict atmospheric conditions in a specific location. In short, it allows for the anticipation of weather events, such as cloud cover, precipitation, wind speed, and temperature, before they occur. This forecasting is essential for people to prepare for and minimize the impact of natural disasters such as floods and typhoons, which can result in property damage and fatalities. Military operations also benefit from weather forecasting in the ability to plan around expected weather conditions to maximize chances of success [5]. In VANETs, weather forecasting is crucial in helping vehicles select routes with favorable weather conditions.