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A Fair and Energy-Efficient Joint Resource Allocation Method in Collaborative Cognitive Networks

A technology of collaborative cognition and resource allocation, applied in the field of joint resource allocation, it can solve problems such as allocating resources and considering user fairness.

Active Publication Date: 2018-06-05
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still no precedent for considering user fairness when allocating resources in collaborative cognitive networks in the reviewed materials

Method used

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  • A Fair and Energy-Efficient Joint Resource Allocation Method in Collaborative Cognitive Networks
  • A Fair and Energy-Efficient Joint Resource Allocation Method in Collaborative Cognitive Networks
  • A Fair and Energy-Efficient Joint Resource Allocation Method in Collaborative Cognitive Networks

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Embodiment

[0048] Examples of the present invention figure 1 As shown, a fair and energy-efficient joint resource allocation algorithm in a cooperative cognitive network is implemented by the following cooperative cognitive radio system: the system includes two parts, the primary system and the secondary system, and the primary system consists of the primary user transmitter PT , the primary user receiving end PR, the secondary system consists of N pairs of secondary user transmitting end ST n and the secondary user receiver SR n Composition, where n∈U represents the nth secondary user, set U={1,2,3,...,N}, the secondary system acts as a relay during the operation of the primary system to assist it in transmitting signals, The relay mode is DF (Decode-and-Forward); there are N secondary users and K subcarriers in this system, and the set of subcarriers is set S={1,2,3,...,K}, and γ k,0 , gamma n,k,1 , gamma n,k,2 and gamma n,k,3 They are the primary user transmitter to the primary u...

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Abstract

The invention provides a fair and high-energy-efficiency united resource allocation method adopted in a collaborative cognitive network and belongs to the technical field of wireless communication. In the collaborative cognitive network, a subordination system assists a main system to reach the target speed, and meanwhile the subordination system utilizes null sub-carriers to transmit signals. According to the fair and high-energy-efficiency united resource allocation method, power distribution of the subordination system and sub-carrier distribution are united to optimize distribution so as to achieve the high-energy-efficiency purpose. In addition, the fairness of subordination users can be balanced, and the blank of consideration on the fairness of the users during resource allocation in the collaborative cognitive network is filled.

Description

technical field [0001] The invention relates to a fair and energy-efficient joint resource allocation method in a cooperative cognitive network, belonging to the technical field of wireless communication. Background technique [0002] With the increasing number of wireless applications and devices, the serious problem of how to meet the growing demand for radio spectrum has attracted widespread attention. In addition, the Federal Communications Commission (FCC) of the United States has also reported that there is currently a very inefficient use of authorized spectrum. [0003] In order to solve these existing problems, cognitive radio (CR) technology has gradually developed in recent years. It is a promising technology because it can improve the efficiency of spectrum utilization in the network by allowing secondary users to automatically sense and obtain idle spectrum for primary users without introducing interference. This secondary user assists the primary user to achi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L5/00H04W72/04
CPCY02D30/70
Inventor 马丕明孙程马艳波
Owner SHANDONG UNIV
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