Experiences from two sensor network deployments - self-configuration a key to success

Various experiments have shown that the performance of wireless sensor networks is very hard to predict. It is also acknowledged that deploying sensor networks in real settings is a difficult and tedious task. To contribute to the understanding of wireless sensor network behavior we report on our experience from two recently deployed sensor networks: one in-door surveillance network in a factory complex and a combined out-door and in-door surveillance network. Both networks use advanced sensor network technology such as ad hoc routing and multi hop networking. Our results highlight the need for self-configuration in wireless sensor networks, especially in cases where fast deployment and dynamic environments are important aspects.