Research Article
Non-stationary Characteristics for Indoor Massive MIMO Channels
@INPROCEEDINGS{10.1007/978-3-030-06161-6_38, author={Qi Wang and Jiadong Du and Yuanyuan Cui}, title={Non-stationary Characteristics for Indoor Massive MIMO Channels}, proceedings={Communications and Networking. 13th EAI International Conference, ChinaCom 2018, Chengdu, China, October 23-25, 2018, Proceedings}, proceedings_a={CHINACOM}, year={2019}, month={1}, keywords={Massive MIMO Channel characteristics Angular parameter}, doi={10.1007/978-3-030-06161-6_38} }- Qi Wang
Jiadong Du
Yuanyuan Cui
Year: 2019
Non-stationary Characteristics for Indoor Massive MIMO Channels
CHINACOM
Springer
DOI: 10.1007/978-3-030-06161-6_38
Abstract
Massive Multiple Input Multiple Output (MIMO) has been widely considered as one of the most promising technologies for the fifth-generation (5G) wireless communication. In massive MIMO system, the research on channel characteristics is important. In this paper, the characteristics for massive MIMO channels at both 2 GHz and 6 GHz are investigated. Based on the real-world measurements, the channel parameters in the delay and frequency domains are extracted to show the non-stationary phenomenon over the large-scale antenna array. Furthermore, the characteristics of the angular parameters extracted by space-alternating generalized expectation-maximization (SAGE) algorithm are investigated and the fluctuations are modeled. The results for different frequencies are useful for deep understanding of massive MIMO channels in the future.