Power efficient range-free localization algorithm for wireless sensor networks

摘要: Considering energy consumption, hardware requirements, and the need of high localization accuracy, we proposed a power efficient range-free algorithm for wireless sensor networks. In algorithm, anchor node communicates to unknown nodes only one time by which inform about their coordinates nodes. By calculating hop-size at complete communication between is eliminated drastically reduce consumption Further, refines estimated better estimation distance from Moreover, using average nodes, calculates all To error propagation, involved in solving location node, new procedure adopted. upgrades its exploiting obtained information system equations. mathematical analysis prove that has lesser propagation than vector-hop (DV-Hop) other considered improved DV-Hop algorithms. Simulation experiments show our performance, more computationally compared