Title :
A Hybrid Localization Algorithm for Improving Accuracy Based on RSSI/AOA in Wireless Network
Author :
Dai, Fan ; Liu, Yaping ; Chen, Lin
Author_Institution :
Sch. of Comput., Nat. Univ. of Defense Technol., Chang Sha, China
Abstract :
The RSSI-based localization is widely researched in wireless network, the signal strength acquirement is convenient by network nodes and need not additional hard wares. We propose a numerical method to correct and optimize the weight value from similitude signal strength named CO-WVSS for improving range accuracy. In particular, we correct and optimize a weight value to reduce errors of RSSI measurement which combined with triangle centroid localization algorithm and estimate the angel and path to optimize the localization algorithm with CO-WVSS. In addition, we perform computer simulations using the OPNET modeler in order to prove our hybrid algorithm can obviously the locating accuracy compared to the single triangle centroid localization algorithm based on RSSI.
Keywords :
digital simulation; direction-of-arrival estimation; measurement errors; numerical analysis; optimisation; radio networks; CO-WVSS; OPNET modeler; RSSI measurement error reduction; RSSI-based localization; RSSI/AOA; angle estimation; computer simulations; hybrid algorithm; hybrid localization algorithm; localization algorithm optimization; network nodes; numerical method; range accuracy improvement; signal strength acquirement; triangle centroid localization algorithm; weight value optimization; wireless network; Accuracy; Educational institutions; Loss measurement; Mathematical model; Wireless networks; Wireless sensor networks;
Conference_Titel :
Computer Science & Service System (CSSS), 2012 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4673-0721-5
DOI :
10.1109/CSSS.2012.163
