@inproceedings{591c199aef3040d0b919125e3766ce73,
title = "Inter-Tier Interference Coordination in Massive-MIMO System based on Statistical Channel Information",
abstract = "We study the interference coordination in massive-MIMO heterogeneous network. In this scene, macro-users (MUEs) are distributed in clusters and pico-cells are separated from MUEs. There exists the inter-tier interference and it is hard to implement interference coordination since the instantaneous channel state information (CSI) between macro-base station (MBS) and pico-users (PUEs) is hard to obtain. In this circumstance, we propose a two-tier precoding method based on the statistical CSI between MBS and pico-base station (PBS) with the minimum mean square error (MMSE) criterion to form deeper nulling for pico-cells close to MBS. In our method, the outer precoder is designed to mitigate the inter-cluster and the inter-tier interference, and the inner precoder aims to suppress the intra-cluster interference. Simulation results show that our statistical CSI based on the MMSE precoding scheme could mitigate the inter-tier interference efficiently in channels with small spatial angular spread. The proposed method could achieve better throughput than other precoding methods for PUEs close to MBS.",
keywords = "Heterogeneous network, MMSE, massive-MIMO, statistical CSI, two-tier precoding",
author = "Rui Peng and Yafei Tian",
note = "Publisher Copyright: {\textcopyright} 2016 IEEE.; 2016 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2016 ; Conference date: 27-07-2016 Through 29-07-2016",
year = "2016",
month = oct,
day = "7",
doi = "10.1109/ICCChinaW.2016.7586720",
language = "英语",
series = "2016 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2016",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "2016 IEEE/CIC International Conference on Communications in China, ICCC Workshops 2016",
address = "美国",
}