D2D network robust power control method, system, device and terminal

Abstract

The invention belongs to the technical field of communication, particularly relates to the technical field of D2D communication in a cellular network, and discloses a D2D network robust power control method, system, equipment and terminal, and the method comprises the steps that a base station samples channel state information of a D2D link and an interference link in a coverage range; learning the collected channel state information by using a support vector clustering algorithm to obtain a minimum convex set capable of covering the uncertain channel state information; after a robust peer-to-peer expression of a D2D link high-reliability constraint condition is constructed according to a training result of channel state information, a bisection-based power distribution strategy is called to solve an optimal power distribution result. The method is oriented to the uncertain channel state information, the problem of how to carry out power distribution on the base station based on the uncertain channel state information in the D2D network is solved, and the reliability of a communication link in the D2D network can be obviously improved.

Description

technical field [0001] The present invention belongs to the technical field of communication, specifically relates to the technical field of D2D communication in a cellular network, and in particular relates to a robust power control method, system, device and terminal of a D2D network. Background technique [0002] Currently, in a D2D communication network, the D2D link channel state information needs to go through multiple hops before being fed back to the base station, so the feedback of the D2D link channel state information has a certain time delay. In addition, due to the influence of factors such as training error, quantization error, channel estimation error, and feedback error in the channel acquisition process, the D2D link channel state information acquired by the base station usually has certain uncertainties. The uncertainty of these channel states will seriously affect the performance of the D2D communication system, such as the increase of the violation probab...

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Problems solved by technology

[0009] Aiming at the problems existing in the prior art, the present invention provides a D2D network robust power control method, system, device, and terminal, and in particular relates to a D2D network robust power control method, system, and device based on a support vector clustering algorithm and terminals, aiming to solve the power control problem of the base station under the condition of obtaining uncertain channel state information of the D2D link

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