Opportunistic spectrum access algorithm based on cross-layer optimization

ZHANG Jing; ZHU Hong-bo

您当前的位置：

首页 >

文章列表页 >

Opportunistic spectrum access algorithm based on cross-layer optimization

更新时间：2024-10-14

- Opportunistic spectrum access algorithm based on cross-layer optimization
- Vol. 31, Issue 11, Pages: 188-194(2010)
- 作者机构：
  
  南京邮电大学通信与信息工程学院江苏省无线通信重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN92
- Published：2010
- 稿件说明：
移动端阅览
ZHANG Jing, ZHU Hong-bo. Opportunistic spectrum access algorithm based on cross-layer optimization[J]. 2010, 31(11): 188-194.
DOI：

ZHANG Jing, ZHU Hong-bo. Opportunistic spectrum access algorithm based on cross-layer optimization[J]. 2010, 31(11): 188-194. DOI：

摘要

针对周期性信道感知机会频谱接入系统

首先采用马尔可夫过程对次用户的感知活动进行建模分析

然后结合物理层和MAC层参数提出一个跨层性能指标——有效传输容量

并在最大化有效传输容量准则下提出一种跨层优化机会频谱接入算法

进而分析了机会频谱共享系统可获得的平均有效传输容量。理论分析和仿真结果表明

所提出的跨层优化接入算法性能优于单层优化接入算法

它可以使次用户获得更高的有效传输容量。

Abstract

Aiming at the opportunistic spectrum access（OSA） system with periodic channel sensing

sensing activity of secondary users was modeled and analyzed with Markov process.Combining physical layer index with MAC layer index

a cross-layer performance measure termed effective transmission capacity（ETC） was introduced.Under the criterion of maximizing ETC

a cross-layer optimal OSA algorithm was proposed and the achievable average ETC of opportunistic spectrum sharing was deduced.Theoretical analysis and simulation results indicate that the proposed algorithm is better than single-layer optimal schemes for it provides the secondary users with higher ETC.

关键词

Keywords

references

Views

850

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Sensing-then-transmission slot scheduling optimization for opportu-nistic spectrum access under the interference constraint of primary us-ers

Cognitive network spectrum access for emergency communications

Opportunistic spectrum accessing joint distance with service characteristics in IOT networks

Related Author

Jing ZHANG

Yin LU

Xi-qi GAO

Fu-chun ZHENG

Zheng GUAN

Wen-hua QIAN

Mei-le YU

Jun SUN

Related Institution

National Mobile Communications Research Laboratory heast University

Key Laboratory of Wireless Communication in Jiangsu Province, College of Electronic Science ＆ Engineering,Nanjing University of Posts and Telecommunications

School of Information Science and Technology,Yunnan University

Institute of Communication Technology,School of Communications and Information Engineering Nanjing University of Posts and Telecommunications

AI问答

⁰