Power-aware Aggregated SEARCH: Enhancing Spectrum and Energy Efficiency of Sensor Networks

Stochastic Election of Appropriate Range Cluster Heads (SEARCH) represents a semi-centralized, cluster head selection method that provides significant number of cluster heads in each round in a cost effective manner. The algorithm has been further refined for reduced energy consumption, higher throughput, improved stable period and therefore improved network lifetime by proposing Power-aware Aggregated SEARCH. Balancing the power requirement in the network along with local aggregation of data at the level of sensor nodes, result in significant improvement in throughput, reduced energy consumption and prolongs the lifetime of sensor network. The proposed technique paves a way to attain spectrum efficient IoT networks based on data aggregation at level of collector sensor nodes.