Hierarchical role-based data dissemination in wireless sensor networks
The Journal of Supercomputing
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Data dissemination has been put forward as an impor- tant mechanism for WSN. The dissemination schemes al- low sink nodes to diffuse information in the network. It is known as an energy-consuming phase. In this paper, we propose to resolve this problem in two steps: firstly us- ing a localized self-organization scheme which generates a non-directed backbone; secondly, sink node sends a re- quest through this backbone to create a directed dissemi- nation structure in the network. Our scheme effectively re- duces the data traffic during the dissemination phase and saves energy when compared to other schemes. It is also extended to run properly in multiple sinks and mobile sink scenarios. The results also put forward the benefits of using a self-organization scheme for data dissemination.