Heterogeneous collision-free clustered scheme for wireless sensor networks

An efficient utilization and allocation of the limited resources of a wireless sensor network (WSN) in a way that maximizes the information value of the data collected is a significant research challenge. Within this context, this result concentrates on architectural approach as a means of focusing a sensor´s on obtaining the important data at heterogeneous environment. Our goal is to facilitate the development of sensor network with achieved heterogeneity to separate all sensors in distributed clusters. These clusters are defined as micro-net, with one or more sophisticated nodes for its flexible orchestration on a WSN. Fully collision-free TDMA-based MAC protocol for a WSN micro-net was proposed. As we assume that in each micronet every node is one-hop far from its neighbors it´s obvious that no routing protocol is needed and it enables to use very simple sensor nodes with limited resources, which prolongs WSN duty life. Together with upper level content here refers to automatic runtime selection of services implementations and network resources to execute the application specification in a resource-efficient and context-aware case.