Topology control in mobile sensor networks using information space feedback
Kin Gwn Lore, Soumik Sarkar, Devesh K. Jha · 2016
Time-varying network topology plays a key role in mobile sensor networks for detection of an event of interest and subsequent awareness propagation within a monitoring and surveillance framework. While physical space parameters such as communication range and mobility characteristics directly drive the network structure, feedback from the information space can be useful to improve network topology and facilitate efficient information management. In this context, the paper proposes a feedback control scheme for tuning key network topology parameters, such as average degree and degree distribution under the recently proposed generalized gossip framework for distributed belief/awareness propagation in mobile sensor networks. The crux of this decentralized control policy is to modify the timelines of the asynchronous belief update protocol depending on the node-level belief/awareness. Using a proximity network representation for a mobile sensor network, the paper presents both analytic and numerical results associated with topology control scheme as well as its impacts on belief/awareness propagation characteristics.