سال انتشار: ۱۳۹۱

محل انتشار: بیستمین کنفرانس مهندسی برق ایران

تعداد صفحات: ۶

نویسنده(ها):

Babak Solhjoo – University of Tabriz
Mohammad Ali Tinati – University of Tabriz

چکیده:

This paper presents a new localization algorithm in Wireless Sensor Networks. The RSSI (Received Signal Strength Indicator) is a localization method which provides an inexpensiveand accurate solution for localization. However the time and location based fluctuations on the RSSI values and impropermodels cause a considerable localization error in the real applications. Most of the RSSI models suppose the radio range tobe circular. In the proposed method the algorithm tries to find a relation between RSSI and distance for each anchor node in each direction adaptively and produce a noncircular model. Thesimulation results show that this method can reduce amount of the localization error considerably. Also unlike to the range freemethods the proposed method can work properly in the low node densities.