A Chain-Based Data Gathering Protocol Under Compressive Sensing Framework for Wireless Sensor Networks

This paper proposes an efficient data gathering protocol for large scale wireless sensor networks by using the compressive sensing technology. All sensor nodes construct a chain by a greedy algorithm. Data packets are transmitted through this chain from one node to another and till the end node of the chain. This end node, namely chain leader, then relays all packets to the base station. By using compressive sensing technology, all sensing data can be simultaneously transmitted and aggregated to a few packets by relaying nodes. The base station is responsible for recovering every node´s data according to these few packets. Simulation results show that this method can reduce the energy consumption of large scale wireless sensor network.