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Power distribution method for full-duplex multi-carrier safety system based on QoS requirements

A safety system, full-duplex technology, applied in the direction of duplex signal operation, advanced technology, climate sustainability, etc., to achieve the effect of reducing power waste, high efficiency utilization, great theoretical and practical significance

Active Publication Date: 2016-06-08
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing literature has not discussed how to balance system security and delay QoS requirements in a full-duplex multi-carrier system

Method used

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  • Power distribution method for full-duplex multi-carrier safety system based on QoS requirements
  • Power distribution method for full-duplex multi-carrier safety system based on QoS requirements
  • Power distribution method for full-duplex multi-carrier safety system based on QoS requirements

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Embodiment

[0051] Examples of the present invention figure 1 As shown, a power allocation method of a full-duplex multi-carrier security system based on QoS requirements is realized by the following communication system: the system includes a source, a relay, a sink, and an eavesdropping, wherein the source, the sink, and the eavesdropping all have a The relay includes a receiving antenna and a transmitting antenna, and the relay adopts DF (Decode-and-Forward) mode. If there is no direct communication between the source and the sink, the source can only pass the signal first It is sent to the relay, and then the relay decodes the received signal and forwards it to the destination; also assume that the source is far away from the eavesdropping, so eavesdropping can only eavesdrop on the signal sent by the relay; in a full-duplex multi-carrier security system In , the system bandwidth B is divided into K subcarriers, so that with Represent the SINR of the sink, relay and eavesdropping ...

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Abstract

The invention relates to a power distribution method for a full-duplex multi-carrier safety system based on QoS requirements, belonging to the technical field of wireless communication. In the full-duplex multi-carrier safety system including interception, a spectrum sharing mode is used as a communication mechanism; on the basis of the safety effective capacity, upper-layer user QoS limitation (time delay QoS) is introduced through a cross-layer joint optimization method; furthermore, in the event that different time delay QoS limitations are satisfied, requirements of performance optimization and resource utilization maximization of the full-duplex multi-carrier safety system are satisfied; therefore, the optimization problem of maximizing the safety effective capacity under the limitation of the total power and the full-duplex relay loop interference power is planed; and optimal dual factors are obtained through a Lagrangian duality theory, such that an optimal power distribution task is realized. By means of the optimal power distribution method, the full-duplex multi-carrier safety system satisfies requirements of the upper-layer user QoS (time delay QoS) requirements, and particularly realizes the optimization of the system safety performance and the high efficiency of physical layer resource utilization.

Description

technical field [0001] The invention relates to a power distribution method of a full-duplex multi-carrier security system based on QoS requirements, and belongs to the technical field of wireless communication. Background technique [0002] With the development of wireless communication technology, its limited spectrum resources make the research face great challenges. In order to improve spectrum utilization and alleviate spectrum demand, full-duplex wireless communication came into being. Full-duplex communication refers to allowing data to be transmitted in two directions at the same time, which is equivalent to the combination of two half-duplex communication methods in terms of capability. However, due to the self-interference problem caused by the dual-antenna configuration of the full-duplex device, the full-duplex technology has not been quickly applied. But in recent years, with the effective improvement of self-interference cancellation technology, full-duplex co...

Claims

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Application Information

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IPC IPC(8): H04W72/04H04W72/08H04W72/12
CPCH04W72/0453H04W72/0473H04L5/14H04W72/543H04W72/542H04W72/54Y02D30/70
Inventor 马丕明梁绥马艳波
Owner SHANDONG UNIV
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