In this paper, the ergodic sum rate maximization problem is considered in the multiple-input single-output non-orthogonal multiple access (NOMA) system with statistical channel state information at the transmitter.First, we derive the analytic expression of the ergodic sum rate with given arbitrary precoders.Then, due to the non-convexity of the op
Objective: to develop a legal model of state coercion against individuals with mental disorders.Methods: dialectical method, analysis, synthesis, description, explanation.Results: identifying features of the semantic and meaningful understanding of state coercion against persons with mental disorders allowed to designate state coercion in respect o
Water meters of different types and sizes are used to monitor and bill the water supply.Although the water is of drinking water quality, its chemo-physical properties often adversely affect the measuring behaviour of a meter after a while.There is thus the risk that they no longer meet legal requirements and may no longer be used.In this paper a te
The wind-induced vibration energy harvester is a type of ideal power source for wireless sensor nodes.To adapt to the uncertainty of wind direction in natural environments, this paper proposes a three-dimensional multi-directional piezoelectric wind energy harvester (WEH), whose bluff body is an external shell with the shape like a lampshade, suppo