Wireless sensor networks are applied in a wide variety of applications, such as environment monitoring, target tracking and so on. Neighbour discovery process is an important component of wireless sensor network’s access and basic communication. Duty-cycle based wireless sensor networks can save energy, but challenges the process of neighbour discovery. A comparison between neighbour discovery ...

Active networks consist of traditional routers and active network nodes (ANN). Some aspects of active networks operation, e.g. security and interoperability, require each ANN to know its neighbour ANNs. However, neighbour ANNs are not directly connected, i.e. there may be one or more plain routers between them. This makes the discovery of neighbour ANNs a non trivial task and fundamentally diff...