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Multi-user Security Cognitive Network Resource Allocation Method Based on Delay QoS and Fairness

A security-aware, multi-user technology, applied in the field of wireless communication, which can solve problems that have not been discussed before

Active Publication Date: 2018-06-26
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the currently available information, there is no discussion on how to balance the delay QoS requirements and user fairness in the multi-user secure cognitive radio network in the spectrum sharing mode

Method used

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  • Multi-user Security Cognitive Network Resource Allocation Method Based on Delay QoS and Fairness
  • Multi-user Security Cognitive Network Resource Allocation Method Based on Delay QoS and Fairness
  • Multi-user Security Cognitive Network Resource Allocation Method Based on Delay QoS and Fairness

Examples

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Embodiment

[0063] Examples of the present invention figure 1 As shown, a multi-user security cognitive network resource allocation method based on delay QoS and fairness is implemented by the following communication system, which includes L secondary user transmitters, a secondary user receiver, and a primary user The receiving end and an eavesdropping end, the communication mechanism is the cognitive radio network spectrum sharing mode, that is, L secondary user transmitters send signals to the secondary user receiving end, the eavesdropping end eavesdrops on the signal during this process, and the secondary user The signal transmitted by the transmitting end will cause certain power interference to the receiving end of the primary user. The communication system adopts a time division multiple access method, that is, one time slot can be occupied by multiple users in different time periods. For the secondary user transmitting end l (l=1 ,2,…,L), assuming that the working period occupied...

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Abstract

The invention relates to a multi-user security cognitive network resource allocation method based on delay QoS and fairness, belonging to the technical field of wireless communication. The present invention takes the multi-user secure cognitive radio network with eavesdropping channels as the communication system model, uses the spectrum sharing mode of the cognitive radio network as the communication mechanism, and uses the cross-layer model of safe and effective capacity to jointly optimize the working period of the secondary user transmitter and Transmit power, while introducing α-utility function to balance the average service rate that the physical layer can support during the working hours of each secondary user's transmitting end. This resource allocation method not only enables the multi-user secure cognitive radio network to meet the requirements of the upper layer user quality of service (delay QoS), but also further balances the fairness of resource allocation among secondary users, and realizes the optimal system performance. It is of great theoretical and practical significance to improve the efficiency of resource utilization at the physical and physical layers.

Description

technical field [0001] The invention relates to a multi-user security cognitive network resource allocation method based on delay QoS and fairness, and belongs to the technical field of wireless communication. Background technique [0002] For wireless communication networks, spectrum resources are precious and limited resources. However, with the development of wireless communication technology, the demand for spectrum resources is also increasing. The existing fixed spectrum allocation strategy is becoming more and more inapplicable. In order to improve spectrum utilization and alleviate spectrum demand, the concept of cognitive radio came into being. Cognitive radio networks support different coexistence modes to achieve spectrum sharing. One of them is the spectrum sharing mode. Specifically, cognitive radio networks allow secondary users and primary users to use the same frequency band at the same time, but the secondary user transmitter needs to adjust the transmission...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W72/04H04W72/08H04W72/10H04W84/18H04W72/54
CPCH04W72/0446H04W84/18H04W72/53H04W72/54H04W72/20H04W72/56
Inventor 马丕明马柳青马艳波
Owner SHANDONG UNIV