TY - GEN
T1 - A low-complexity direction-of-arrival estimation algorithm for full-dimension massive MIMO systems
AU - Yang, Kai Yu
AU - Wu, Jwo-Yuh
AU - Li, Wen Hsuan
N1 - Publisher Copyright:
© 2014 IEEE.
PY - 2014/1/27
Y1 - 2014/1/27
N2 - Full dimension (FD) MIMO, whereby a 2-dimensional (2D) antenna array is placed at the base station, has been known as a promising solution to economize spatial size of practical massive MIMO systems. To exploit such spatial resource for system performance enhancement, e.g., via three-dimensional beamforming, accurate estimation of the direction-of-arrival (DoA) of the signal sources is necessary. Existing DoA estimation methods using 2D arrays typically resorted to joint search over the 2D angular domain; however, the required algorithmic complexity would be prohibitively large, especially in the massive MIMO scenario. This paper proposes a two-stage low-complexity DoA estimation scheme, in which two MUSIC algorithms are performed for estimating, respectively, the elevation and azimuth angles of the impinging sources. Detailed flop count analyses are provided for justifying the low-complexity advantage. Various numerical simulations are also used to illustrate the performance of the proposed scheme.
AB - Full dimension (FD) MIMO, whereby a 2-dimensional (2D) antenna array is placed at the base station, has been known as a promising solution to economize spatial size of practical massive MIMO systems. To exploit such spatial resource for system performance enhancement, e.g., via three-dimensional beamforming, accurate estimation of the direction-of-arrival (DoA) of the signal sources is necessary. Existing DoA estimation methods using 2D arrays typically resorted to joint search over the 2D angular domain; however, the required algorithmic complexity would be prohibitively large, especially in the massive MIMO scenario. This paper proposes a two-stage low-complexity DoA estimation scheme, in which two MUSIC algorithms are performed for estimating, respectively, the elevation and azimuth angles of the impinging sources. Detailed flop count analyses are provided for justifying the low-complexity advantage. Various numerical simulations are also used to illustrate the performance of the proposed scheme.
KW - Direction of Arrival (DoA)
KW - ESPRIT
KW - Full-Dimension MIMO
KW - MUSIC
KW - Massive MIMO
UR - http://www.scopus.com/inward/record.url?scp=84988233604&partnerID=8YFLogxK
U2 - 10.1109/ICCS.2014.7024848
DO - 10.1109/ICCS.2014.7024848
M3 - Conference contribution
AN - SCOPUS:84988233604
T3 - 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
SP - 472
EP - 476
BT - 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2014 IEEE International Conference on Communication Systems, IEEE ICCS 2014
Y2 - 19 November 2014 through 21 November 2014
ER -