A novel Hadamard matrix based hybrid compressive sensing technique for enhancing energy efficiency and network longevity.

Wireless Sensor Networks (WSN)-based Internet of Things (IoT) are made up of many tiny sensor nodes that are assigned specific tasks to sense, data process, communicate and control in predetermined areas. These networks are used in many different domains, including military operations, security, disaster relief, and habitat monitoring. However, there are various challenges and design issues in WSN like node deployment, routing, energy consumption, computational power, bandwidth, clustering, fault tolerance, coverage, connectivity and QoS.