[1]郭强,车玉洁,张晓萌,等. 一种适应自相似业务的异构网络接纳控制算法[J].计算机技术与发展,2016,26(03):97-100.
　GUO Qiang,CHE Yu-jie,ZHANG Xiao-meng,et al. A CAC Algorithm Adopting for Self-similar Service in Wireless Network[J].,2016,26(03):97-100.
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 一种适应自相似业务的异构网络接纳控制算法()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
26
期数:
2016年03期
页码:
97-100
栏目:
智能、算法、系统工程
出版日期:
2016-03-10

文章信息/Info

Title:
 A CAC Algorithm Adopting for Self-similar Service in Wireless Network
文章编号:
1673-629X（2016)03-0097-04
作者:
 郭强; 车玉洁; 张晓萌; 朱若菡
 山东财经大学 管理科学与工程学院
Author(s):
 GUO Qiang; CHE Yu-jie; ZHANG Xiao-meng; ZHU Ruo-han
关键词:
 ; 纳控制; 自相似; 带宽估计; 异构网络; 阻塞率
Keywords:
 ; call admission control; self-similar; bandwidth estimation; heterogeneous network; blocking rate
分类号:
TN929.5
文献标志码:
A
摘要:
 为了解决异构网络系统容量有限、资源利用率较低的问题，根据异构网络业务的自相似特性，提出了一种适应自相似业务的异构网络接纳控制算法。首先，通过统计网络演算方法，根据业务流量特性和要求定量求解网络性能的统计边界，进而求解出自相似业务所需的最小带宽，能够进行更准确的带宽估计；其次，制定合理的接纳控制策略，即考虑业务优先级、异构网的剩余带宽以及业务本身所需带宽情况三方面的因素进行接纳控制，另外，该策略通过引入概率机制保证终端接入的公平性；最后，在3G与WLAN互联的异构网络环境下进行OPNET仿真验证。通过仿真结果和数据分析，该算法能够在保证用户服务质量的基础上提高带宽利用率，降低系统的业务阻塞率，实现资源的优化配置。
Abstract:
 In order to solve the problem of limited system capacity and low resource utilization rate in heterogeneous network,according to the self-similarity of heterogeneous network traffic,a Call Admission Control ( CAC) algorithm for self-similar traffic model is pro-posed. First of all,it makes more accurate bandwidth estimation by statistical network calculus according to the self-similarity and require-ment for solving the minimal bandwidth of self-similar business. Secondly,reasonable admission control strategy is designed,which con-siders three factors including business priorities,the remainder of the heterogeneous network bandwidth and the business itself for admis-sion control. In addition,by introducing probability mechanism,the strategy ensures the fairness of terminal access. Finally,the OPNET simulation and verification is conducted in the heterogeneous network environment of 3G and WLAN. The results show that this algorithm can improve the utilization of the network and reduce the call drop ratio,realizing the optimized configuration of the resource on the basis of guaranteeing QoS of the network.

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更新日期/Last Update: 2016-06-12