A topology control algorithm of wireless sensor network based on backup node

Self-organization and limited energy are two features of wireless sensor network. This paper proposes a practice topology control algorithm for wireless sensor network based on adding backup node and hidden link in traditional topology tree. Because of the HRP(Hierarchical Routing Protocol), build links and generate routing information at the same time; therefore this feature can save resource while no wasting resource on maintaining routing information. Furthermore, maintaining backup nodes can provide an inheritable self-repair function, once any node disabled, it can still keep the network connectivity by invoking a specified procedure. Keywordswireless sensor network ;topology control; self