On Performance Degradation of Channel State Feedback Due to Latency and a Novel Solution

In millimeter wave (mmWave) systems, the channel state fluctuates faster than that in sub-6GHz systems. Thus, the channel state dependent scheduling requires the faster feedback from a user equipment, which will generate the larger overhead. To reduce the feedback overhead, a prediction based feedback scheme is proposed under the assumption of the imperfect channel states being available at the us...