基于多主用户活跃性的多功率认知接入策略

doi:10.11959/j.issn.1000-0801.2017281

电信科学 ›› 2017, Vol. 33 ›› Issue (10): 50-57.doi: 10.11959/j.issn.1000-0801.2017281

基于多主用户活跃性的多功率认知接入策略

李晓宇,杨守义,赵晓娟,张瑞哲

郑州大学信息工程学院，河南郑州 450001

修回日期:2017-09-28 出版日期:2017-10-01 发布日期:2017-11-13
作者简介:李晓宇（1994-），男，郑州大学信息工程学院硕士生，主要研究方向为认知无线电、宽带无线通信。|杨守义（1965-），男，博士，郑州大学信息工程学院教授、博士生导师，主要研究方向为无线通信系统、认知无线电、通信信号处理。|赵晓娟（1990-），女，郑州大学信息工程学院硕士生，主要研究方向为认知无线电、非正交多址。|张瑞哲（1990-），男，郑州大学信息工程学院博士生，主要研究方向为认知无线电、无线通信系统。
基金资助:
国家自然科学基金资助项目(U1604159);国家重点研发计划政府间专项项目(2016YFE0118400)

Multi-power cognitive access strategy based on multiple primary user traffic

Xiaoyu LI,Shouyi YANG,Xiaojuan ZHAO,Ruizhe ZHANG

College of Information Engineering,Zhengzhou University,Zhengzhou 450001,China

Revised:2017-09-28 Online:2017-10-01 Published:2017-11-13
Supported by:
The National Natural Science Foundation of China(U1604159);Special Project for Inter-Government Collabo-ration of State Key Research and Development Program(2016YFE0118400)

摘要/Abstract

摘要：

针对大多数认知无线电场景中存在多个主用户，且具有较强活跃性的问题，提出了一种基于授权用户活跃性的多主用户多状态认知接入机制以及对应的多功率接入策略。该方法能够使认知用户选择最优的授权信道接入，并采用合适的功率进行传输，实现了认知系统吞吐量的最大化。数值仿真结果表明，该接入机制能够使认知用户充分利用多主用户信息和资源。与传统的功率接入方式相比，既能减小对主用户的干扰，又能提升认知系统的容量。

关键词: 认知无线电, 多主用户, 主用户活跃性, 多功率分配

Abstract:

In most of the cognitive radio (CR) network scenarios,there are multiple primary users (PU) with intense traffic.A novel multi-PU multi-state CR access mechanism and the corresponding multi-power access strategy based on the primary user traffic were proposed to address this problem.The method enabled the secondary user (SU) to access the optimal channel and adopt an appropriate power to transmit data,which could maximize the throughput of the CR system.Numerical simulation results show that the proposed method can enable the SU to take advantage of the information and resource of the multi-PU.The method not only minimizes the interference to the primary user,but also improves the achievable throughput of the CR system.

Key words: cognitive radio, multiple primary users, primary user traffic, multi-power allocation

中图分类号:

TN915

李晓宇,杨守义,赵晓娟,张瑞哲. 基于多主用户活跃性的多功率认知接入策略[J]. 电信科学, 2017, 33(10): 50-57.

Xiaoyu LI,Shouyi YANG,Xiaojuan ZHAO,Ruizhe ZHANG. Multi-power cognitive access strategy based on multiple primary user traffic[J]. Telecommunications Science, 2017, 33(10): 50-57.

图/表 5

参考文献 14

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基于多主用户活跃性的多功率认知接入策略

Multi-power cognitive access strategy based on multiple primary user traffic

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