Initial Phase Effect on DOA Estimation in MMIMO Using Separated Steering Matrix

Bayan Mahdi Sabar (Al-Nahrain University)
Yasmine M. Tabra (Al-Nahrain University)

TELKOMNIKA (Telecommunication Computing Electronics and Control)
Vol 16, No 3: June 2018

Providing simple and low complexity algorithms for estimating the direction of arrival in large systems using Massive MIMO is considered an important issue. In this paper a method with reduced complexity was proposed to estimate the direction of arrival in FD- MMIMO. The Separated Steering Matrix (SSM) algorithm uses two separated equations for estimating elevation and azimuth angles of Multi-users. This method reduces the complexity of calculating the covariance matrix by decreasing the size of this matrix. This technique is tested using 2D-MUSIC algorithm. Since the mobility of devices affects the accuracy of direction estimation, thus the effect of the initial phase of transmitted signal from mobile device is tested.