基于传输中断概率的认知无线电系统性能分析

高昊民; 赵海峰; ，梁晓; 穆晓敏

doi:10.3969/j.issn.1000-0801.2013.10.020

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基于传输中断概率的认知无线电系统性能分析

研究与开发 | 更新时间：2024-06-05

- 基于传输中断概率的认知无线电系统性能分析
- Performance Analysis of Cognitive Radio System Based on Outage Probability of Cognitive Transmission
- 电信科学 2013年29卷第10期页码：114-118
- 作者机构：
- 作者简介：
  
  [ "高昊民，男，郑州大学硕士研究生，主要研究方向为认知无线电频谱感知。" ]
  [ "赵海峰，男，郑州大学博士研究生，主要研究方向为认知无线电频谱感知。" ]
  [ "梁晓，女，郑州大学硕士研究生，主要研究方向为认知无线电频谱接入。" ]
  [ "穆晓敏，女，郑州大学教授、博士生导师，主要研究方向为通信信号处理、图像信号处理、数字水印技术、认知无线电技术等。" ]
- 基金信息：
  
  国家自然科学基金资助项目(6127142);教育部新世纪优秀人才基金资助项目(NCET-12-0699);浙江省教育厅科学基金资助项目;Education Department Foundation of Zhejiang Province(112102210507)
- DOI：10.3969/j.issn.1000-0801.2013.10.020
  中图分类号：
- 网络出版日期：2013-10，
  
  纸质出版日期：2013-10-20
- 稿件说明：
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高昊民, 赵海峰, ，梁晓, 等. 基于传输中断概率的认知无线电系统性能分析[J]. 电信科学, 2013,29(10):114-118.

Haomin Gao, Haifeng Zhao, Xiao Liang, et al. Performance Analysis of Cognitive Radio System Based on Outage Probability of Cognitive Transmission[J]. Telecommunications science, 2013, 29(10): 114-118.
高昊民, 赵海峰, ，梁晓, 等. 基于传输中断概率的认知无线电系统性能分析[J]. 电信科学, 2013,29(10):114-118. DOI： 10.3969/j.issn.1000-0801.2013.10.020.

Haomin Gao, Haifeng Zhao, Xiao Liang, et al. Performance Analysis of Cognitive Radio System Based on Outage Probability of Cognitive Transmission[J]. Telecommunications science, 2013, 29(10): 114-118. DOI： 10.3969/j.issn.1000-0801.2013.10.020.

摘要

如何设计最优的频谱感知与传输框架是认知无线电技术的重要环节。考虑频谱接入过程中数据传输中断对认知网络性能影响的问题，提出了一种新的基于传输中断概率的频谱感知与传输模型，联合优化频谱感知和数据传输两个阶段，将问题建模为对主用户的干扰量约束条件下的非凸优问题，以最大化认知网络吞吐量为目标联合优化感知时间、传输速率，并通过数值计算方法对其进行求解与仿真。数值分析表明，引入传输中断概率后，在满足上述约束条件的同时，在保护主用户和认知网络吞吐量、传输时延之间有了更好的权衡。

Abstract

It is an important part to design an optimal spectrum sensing and transmission framework in cognitive radio network.Considering that cognitive data transmission outage had effect on the performance of cognitive radio system

a novel spectrum sensing and transmission model based on the outage probability of cognitive transmission was proposed and the two phases of spectrum sensing and data transmission were jointly optimized.The model was formulated as a nonconvex optimization problem under the constraint of interference to primary user

which maximized the average achievable throughput by the joint optimization of sensing time and data transmission rate and simulated by means of the numerical method.The numerical analysis shows that a better tradeoff can be achieved among the protection of primary user

the throughput of cognitive system and transmission delay when the outage probability is cited and the constraint is satisfied.

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references

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