北京邮电大学学报

  • EI核心期刊

北京邮电大学学报 ›› 2015, Vol. 38 ›› Issue (s1): 33-36.doi: 10.13190/j.jbupt.2015.s1.008

• 论文 • 上一篇    下一篇

自主无线网络中信道质量的评估

刘菲, 杜鹏飞, 杨清海   

  1. 西安电子科技大学 通信工程学院, 西安 710071
  • 收稿日期:2014-08-20 出版日期:2015-06-28 发布日期:2015-06-28
  • 作者简介:刘 菲(1986—), 女, 博士生, E-mail:liufeilf201@sina.com; 杨清海(1976—), 男, 教授, 博士生导师.
  • 基金资助:

    国家自然科学基金项目(61471287);国家重大专项项目(2013ZX03003011-003)

Channel Quality Evaluation in Autonomic Wireless Networks

LIU Fei, DU Peng-fei, YANG Qing-hai   

  1. School of Telecommunication Engineering, Xidian University, Xi'an 710071, China
  • Received:2014-08-20 Online:2015-06-28 Published:2015-06-28

摘要:

无线信道的精确评估是节点接入网络决策的基础. 采用基于信道监听过程的方法进行信道质量评估,使得用户可以正确地接入无线信道. 该方法权衡了监听精度和信道空闲时间. 进一步分析了监听参数(监听时间和采样频率等)对信道评估结果的影响,得到了使信道质量值最大时的监听参数. 仿真验证了分析结果的正确性.

关键词: 自主无线网络, 信道质量, 采样频率, 监听时间

Abstract:

The node access has been paid more attentions in network decision making. An accurate evaluation of wireless channel was investigated. A method based on the process of sensing that is a trade-off between the accuracy of channel sensing and channel idle time, was employed to evaluate the wireless channel. Furthermore, the impact of the sensing parameters including sensing time, sampling frequency on the channel quality was analyzed. An optimal sensing time and sampling frequency was derived to maximize the value of channel quality. Simulations verify the analysis validity.

Key words: autonomic wireless network, channel quality, sampling frequency, sensing time

中图分类号: