Power allocation method for full-duplex multi-carrier security system based on qos requirements

A technology of a security system and a distribution method, which is applied in the field of wireless communication to achieve high-efficiency utilization, reduction of power waste, and significant theoretical and practical effects.

Active Publication Date: 2018-10-26
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 allocation method for full-duplex multi-carrier security system based on qos requirements
  • Power allocation method for full-duplex multi-carrier security system based on qos requirements
  • Power allocation method for full-duplex multi-carrier security system based on qos requirements

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Embodiment

[0052] 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 antenna, while the relay contains a receiving antenna and a transmitting antenna, while the relay uses DF

[0053] (Decode-and-Forward) mode, if there is no direct communication between the source and the sink, the source can only send the signal to the relay first, and then the relay will decode the received signal and forward it to the sink; also set the source It is far away from eavesdropping, so eavesdropping can only eavesdrop on the signal sent by the relay; in a full-duplex multi-carrier security system, the system bandwidth B is divided into K subcarriers, so that and Represent the SINR of the sink, relay and eavesdropping on th...

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Abstract

The invention relates to a power distribution method of a full-duplex multi-carrier security system based on QoS requirements, belonging to the technical field of wireless communication. In the full-duplex multi-carrier security system with eavesdropping, the spectrum sharing mode is used as the communication mechanism, and on the basis of the security effective capacity, the upper-layer user quality of service limitation (delay QoS) is introduced through the cross-layer joint optimization method, and the Under different delay QoS constraints, the performance and resource utilization requirements of the full-duplex multi-carrier security system are optimal. Therefore, the present invention plans the optimization problem of maximizing the safe and effective capacity limited by the total power and the loop interference power of the full-duplex relay, and obtains the optimal dual factor through the Lagrangian dual theory to realize the optimal power distribution tasks. The optimal power allocation method not only enables the full-duplex multi-carrier security system to meet the requirements of the upper layer user service quality (delay QoS), but also realizes the optimization of system security 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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Patent Type & Authority Patents(China)
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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