Jamal A.  Hammad, Ahmed  N. Rashid, 
    Estimation of RFID Tag’s Direction Based on LANDMARC Algorithm,
    Journal of Engineering and Applied Sciences,
    Volume 13,Issue 18,
    2018,
    Pages 7758-7766,
    ISSN 1816-949x,
    jeasci.2018.7758.7766,
    (https://makhillpublications.co/view-article.php?doi=jeasci.2018.7758.7766)
    Abstract: The objects monitoring is a very important research and to effectively monitor objectives of interest it’s necessary to be aware of the object’s movement direction in a monitored area. This study presents an accurate method to determine the direction of the tagged object through a Radio Frequency Identification (RFID)-based system, using LANDMARC algorithm. A location sensing prototype system that uses (RFID) technology for locating objects. In this research method use Received Signal Strength Indicator (RSSI) technique to estimate the direction of the object. This method considers as an effective tag movement direction detection in which an original tag communication system is used as much as possible without using optional equipment, also, this algorithm able to reduces the number of antennas used to estimate the direction of the object to a lower’s number as possible. The simulation results prove the accuracy of this method with a low complexity.
    Keywords: Radio Frequency Identification (RFID);LANDMARC;Received Signal Strength Indicator (RSSI);localization;Wireless Sensor Network (WSN);methods