National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [61601509, 61601334]; China Postdoctoral Science FoundationChina Postdoctoral Science Foundation [2016M603045, 2018M632889]; self-determined research funds of CCNU from the colleges basic research and operation of MOE [CCNU18QN007]
机构署名：
本校为其他机构
院系归属：
国家数字化学习工程技术研究中心
摘要：
We exploited the temporal correlation of channels in the angular domain for the downlink channel estimation in a massive multiple-input multiple-output (MIMO) system. Based on the slow time-varying channel supports in the angular domain, we combined the channel support information of the downlink angular channel in the previous timeslot into the channel estimation in the current timeslot. A downlink channel estimation method based on variational Bayesian inference (VBI) and overcomplete dictionary was proposed, in which the support prior inform...
