Abstract: Wireless sensor network is the emerging area where we are largely depending on it, in our day to day life. The major application of the wireless sensor network is the emergency navigation service during the emergency situations, and the main goal of this service is to save the people from emergency situations by guiding them to reach a safe with small congestion and fewer detours. The existing systems are mainly focus on the safe exit to the people. But, they ignoring the problems like congestion and heavy detours caused due to people movement towards the exit on this kind of emergency situations. From this project, we propose a new existing algorithm named CANS which means Congestion Adaptive Small stretch and Emergency Navigation algorithm mainly used to control the congestion in emergency situations and guide the people to the safe locations within a short time. Because CANS doesn’t need any location information. Without any location information, guiding the users for safe path is practically impossible. So, we propose the GSTEB protocol to guide the people in dangerous situations for a safe exit. By using CANS algorithm, when any emergency situation occurs, the sensors in the wireless sensor networks take the information on overall condition of the surroundings and location information of the all the users. And then the sensors in the wireless sensor networks talk with the mobile users about the better and near way to the exit or safe path. CANS execute the technique of level set method to track the users and guide them to the exit and the boundary of the hazardous areas. So, the people near to the dangerous areas will receive a mild congestion at the cost of slight detour. While, the people away from the dangerous areas will faces a unwanted detours. Generally, when an emergency situation occurs, people look for known path to the safe exit from their location.
Keywords: Wireless Sensor Network, GSTEB Protocol, CANS, Emergency Navigation algorithm.