JMT_V3_N2_RP1 Optimal Algorithm for Estimation of Mobile Users Direction in 5G LTE Yasmine Mazin Tabra Bayan Mahdi Sabar Journal on Mobile Applications and Technologies 2394-0239 3 2 1 5 Smart Antenna, DOA, LTE, MUSIC, Root MUSIC, Capon, ESPRIT Smart antennas used in new generations of mobile technologies provide a great improvement in detection of the direction of user mobile device. The use of Direction Of Arrival (DOA) algorithms to locate mobile devices is highly applicable due to the improvement of mobile systems to 5G LTE. To select the most appropriate method to work with LTE system, a comparison between the available algorithms in DOA is made. Among the algorithms used were Capon, MUSIC, Root-MUSIC, and ESPRIT. The comparison is made in number of snapshots, SNR, accurascy, and estimation time. May - July 2016 Copyright © 2016 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=13438