One-dimensional localization algorithm based on signal strength ratio

In order to solve the problem of reestablishing the data set when the environments change, a novel 1-dimensional localization algorithm based on received signal strength ratio (1-DIM-RSSR) is proposed for the 1-dimensional wireless sensor network applications, such as road surveillance and pipeline transmission. Based on linear localization, 1-DIM-RSSR utilizes the ratio of the received signal strength instead of signal strength to determine the positions of the unknown nodes. It only needs to establish the data set of the received signal strength ratio once. Simulation and experiment results show that the localization precision of the proposed algorithm compared with the RSSI algorithm is improved when environments change. And it is shown that the algorithm is well flexible and practical for the linear applications.