[1]方泓茜,刘娇,朱东弼.非时隙结构认知无线网络中非授权用户传输时延分析[J].延边大学学报(自然科学版),2014,40(02):154-157.
　FANG Hongqian,LIU Jiao,ZHU Dongbi*.Packet transmission delay of secondary users in unsloted cognitive radio network[J].Journal of Yanbian University,2014,40(02):154-157.
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非时隙结构认知无线网络中非授权用户传输时延分析

《延边大学学报(自然科学版)》[ISSN:1004-4353/CN:22-1191/N] 卷: 第40卷 期数: 2014年02期 页码: 154-157 栏目: 应用科学研究 出版日期: 2014-06-20
Title:
Packet transmission delay of secondary users in unsloted cognitive radio network
作者:
方泓茜; 刘娇; 朱东弼
延边大学工学院 电子信息工程系, 吉林 延吉 133002
Author(s):
FANG Hongqian;  LIU Jiao;  ZHU Dongbi*
Department of Electronic Information and Engineering, College of Engineering,Yanbian University, Yanji 133002, China
关键词:
认知无线网络;  随机侦听多址方案;  传输时延;  拉普拉斯-斯帝尔阶斯变换
Keywords:
cognitive radio network;  random sensing;  packet transmission delay of secondary users;  Laplace-Stieltjes transform
分类号:
TN915
文献标志码:
A
摘要:
在非时隙结构认知无线网络中,以随机侦听多址方案为基础构建了系统的数学模型,利用柯尔莫哥洛夫-费勒前向方程得出系统的稳态概率,并采用拉普拉斯-斯帝尔阶斯变换推导出非授权用户数据包的平均传输时延.数值分析表明,信道忙的概率和平均退避时间与传输时延呈正比关系,不同的载波侦听多址方案对传输时延影响很大,其中全侦听多址方案的传输时延最小.
Abstract:
We construct the mathematical model of CSMA scheme with random-sensing in unsloted cognitive radio network, then by the Kolmogorov forward equation we obtained the stationary probability of the system. At last, we estimated the packet transmission delay of secondary users by Laplace-Stieltjes transform. The numerical result shows that packet transmission delay increases as the channel busy probability or back-off time increases. Different CSMA schemes also have influence on packet transmission delay, and it will be shortest when we use CSMA scheme with all-sensing.

参考文献/References:

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备注/Memo

收稿日期: 2014-03-27*通信作者: 朱东弼(1967—),男,副教授,研究方向为通信网性能分析.

更新日期/Last Update: 2014-06-20