TY - GEN
T1 - Measurement-based Double-Directional Polarimetric Characterization of Outdoor Massive MIMO Propagation Channels at 3.5GHz
AU - Hao, Le
AU - Rodríguez-Piñeiro, José
AU - Cai, Xuesong
AU - Yin, Xuefeng
AU - Hong, Jingxiang
AU - Pedersen, Gert Frølund
AU - Schwarz, Stefan
PY - 2020/8/3
Y1 - 2020/8/3
N2 - Massive multiple-input multiple-output (MIMO) is a key technology for 5G wireless communications since it can improve network throughput, capacity, spatial efficiency, etc. utilizing large-scale antenna arrays. In this paper, we study the direction of departure (DOD) and direction of arrival (DOA) power spectra and the angular spreads for suburban line-of-sight (LoS) environment. Our study is based on a measurement campaign conducted at a carrier frequency of 3.5GHz, with a bandwidth of 160MHz and ±45◦dual-polarized 4×8 planar and cylindrical antenna arrays at the transmitter and the receiver, respectively. The space-alternating generalized expectation-maximization (SAGE) algorithm is applied to jointly estimate the DOA, DOD, delay and complex amplitude of the propagation channel measured by the massive MIMO system. Results show that the double-directional channel characteristics exhibit dependence with the employed polarization combination. The obtained characterization results are of great value for the analysis of polarization-dependent design and antenna selection strategies for MIMO systems.
AB - Massive multiple-input multiple-output (MIMO) is a key technology for 5G wireless communications since it can improve network throughput, capacity, spatial efficiency, etc. utilizing large-scale antenna arrays. In this paper, we study the direction of departure (DOD) and direction of arrival (DOA) power spectra and the angular spreads for suburban line-of-sight (LoS) environment. Our study is based on a measurement campaign conducted at a carrier frequency of 3.5GHz, with a bandwidth of 160MHz and ±45◦dual-polarized 4×8 planar and cylindrical antenna arrays at the transmitter and the receiver, respectively. The space-alternating generalized expectation-maximization (SAGE) algorithm is applied to jointly estimate the DOA, DOD, delay and complex amplitude of the propagation channel measured by the massive MIMO system. Results show that the double-directional channel characteristics exhibit dependence with the employed polarization combination. The obtained characterization results are of great value for the analysis of polarization-dependent design and antenna selection strategies for MIMO systems.
KW - Massive MIMO
KW - channel characteristics and polarization
KW - large-scale antenna array
UR - http://www.scopus.com/inward/record.url?scp=85090386015&partnerID=8YFLogxK
U2 - 10.1109/SPAWC48557.2020.9154274
DO - 10.1109/SPAWC48557.2020.9154274
M3 - Article in proceeding
SN - 978-1-7281-5479-4
T3 - IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
BT - IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
PB - IEEE
T2 - 2020 IEEE 21st International Workshop on Signal Processing Advances in Wireless Communications (SPAWC)
Y2 - 26 May 2020 through 29 May 2020
ER -