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An adaptive QoS scheme for WSN-based smart grid monitoring

In Wireless Sensor Network (WSN) based smart grid condition monitoring applications (e.g., the detection of a Partial Discharge (PD) event in high voltage transformers), network traffic dramatically increases when cascaded faults occur. Reliability and delay are among the main issues that are affected by this increase in the traffic rates. In this paper, we present an adaptive Quality of Service (QoS) scheme for WSNs that provides service differentiation by reducing the delay of critical data in smart grid monitoring and control applications. This scheme is tailored for large-scale WSN deployments with multi-hop cluster-tree topologies. Analytical and simulation results show that our proposed scheme satisfies the delay requirement of the smart grid while maintaining high reliability.