Power allocation method for full-duplex relay network under non-ideal channel state

Abstract

The invention discloses a power distribution method for a full-duplex relay network in a nonideal channel state, and belongs to the technical field of wireless communication. The method gives consideration to a safe and effective capacity model in a full-duplex multi-carrier safety system with an intercept unit. A resource distribution task in a safety network of a full-duplex multi-carrier relay is completed through a robust full-duplex relay loop interference channel state information method. Therefore, the method achieves the planning of optimization problems of power limit, affected by the total power and the loop of the full-duplex relay, and safe and effective capacity maximization. The method solves an optimal dual factor through a Lagrange duality theory, so as to achieve the optimal power distribution strategy. The optimal power distribution method enables the full-duplex relay network in the nonideal channel state to meet the requirements of upper users for quality of service (time delay QoS), and also achieves the optimal safety performance and the high-efficiency utilization in a supposed channel state information error range.

Description

technical field [0001] The invention relates to a power distribution method of a full-duplex relay network under a non-ideal channel state, and belongs to the technical field of wireless communication. Background technique [0002] Since the openness of the wireless transmission medium makes the channel easy to be eavesdropped, for any wireless communication network, the security of communication has always been the most concerned issue, and it is also an important standard to measure the quality of communication. With the development of wireless communication technology, network communication also puts forward higher requirements for security. In recent years, ensuring the security of wireless communication by using increasingly abundant physical layer resources has become a hot spot that more researchers pay attention to. [0003] In wireless communication network transmission, QoS (Quality of Service) plays a vital role in the new generation of wireless communication net...

AI Technical Summary

Problems solved by technology

Unavoidably affected by factors such as estimation errors, quantization errors, and feedback delays, these self-interference cancellation techniques are non-ideal cancellations, and cannot achieve the goal of zero interference between dual antennas of full-duplex devices. Interference channel state information is difficult to estimate accurately

However, most of the current literature is based on the assumption that the channel after interference has ideal information state information.

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