一种软件定义无线网络负载均衡架构及算法
软件定义网络（ SDN）为实现异构无线网络中的负载均衡提供了新的思路.设计了一种软件 定义的无线网络负载均衡架构,并提出对应算法.首先,根据接收信号强度构建候选网络列表;其 次,根据各候选网络的可用负载比率标准差进行负载差异分级;再次,将服务质量匹配度函数和负载 均衡指数线性组合成联合优化函数,并根据负载差异分级对联合优化的权重进行动态调整,合理设 置门限进行接纳控制.与传统算法相比,所提算法一方面可使各类业务阻塞率明显降低大约20% , 另一方面使不同网络的归一化负载更加接近.该算法在进行网络负载均衡的同时,能够有效降低业 务阻塞率,从而有效提升异构无线网络的整体性能....
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| Published in | 电讯技术 Vol. 57; no. 1; pp. 72 - 77 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
西安邮电大学通信与信息工程学院,西安,710121%西安邮电大学电子工程学院,西安,710121
2017
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-893X |
| DOI | 10.3969/j.issn.1001-893x.2017.01.012 |
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| Abstract | 软件定义网络（ SDN）为实现异构无线网络中的负载均衡提供了新的思路.设计了一种软件 定义的无线网络负载均衡架构,并提出对应算法.首先,根据接收信号强度构建候选网络列表;其 次,根据各候选网络的可用负载比率标准差进行负载差异分级;再次,将服务质量匹配度函数和负载 均衡指数线性组合成联合优化函数,并根据负载差异分级对联合优化的权重进行动态调整,合理设 置门限进行接纳控制.与传统算法相比,所提算法一方面可使各类业务阻塞率明显降低大约20% , 另一方面使不同网络的归一化负载更加接近.该算法在进行网络负载均衡的同时,能够有效降低业 务阻塞率,从而有效提升异构无线网络的整体性能. |
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| AbstractList | 软件定义网络（ SDN）为实现异构无线网络中的负载均衡提供了新的思路.设计了一种软件 定义的无线网络负载均衡架构,并提出对应算法.首先,根据接收信号强度构建候选网络列表;其 次,根据各候选网络的可用负载比率标准差进行负载差异分级;再次,将服务质量匹配度函数和负载 均衡指数线性组合成联合优化函数,并根据负载差异分级对联合优化的权重进行动态调整,合理设 置门限进行接纳控制.与传统算法相比,所提算法一方面可使各类业务阻塞率明显降低大约20% , 另一方面使不同网络的归一化负载更加接近.该算法在进行网络负载均衡的同时,能够有效降低业 务阻塞率,从而有效提升异构无线网络的整体性能. TN929.5; 软件定义网络( SDN)为实现异构无线网络中的负载均衡提供了新的思路。设计了一种软件定义的无线网络负载均衡架构，并提出对应算法。首先，根据接收信号强度构建候选网络列表；其次，根据各候选网络的可用负载比率标准差进行负载差异分级；再次，将服务质量匹配度函数和负载均衡指数线性组合成联合优化函数，并根据负载差异分级对联合优化的权重进行动态调整，合理设置门限进行接纳控制。与传统算法相比，所提算法一方面可使各类业务阻塞率明显降低大约20%，另一方面使不同网络的归一化负载更加接近。该算法在进行网络负载均衡的同时，能够有效降低业务阻塞率，从而有效提升异构无线网络的整体性能。 |
| Abstract_FL | Software defined network( SDN) provides a new way to achieve load balancing in heterogeneous wireless networks. A load balancing architecture and algorithm for software defined wireless network are proposed. First,the algorithm constructs a list of candidate networks based on the received signal strength ( RSS) . Secondly,by calculating the standard deviation of available load ratio in each available candidate network,the load differences among the candidate networks are classified. Then,a joint optimization func-tion is proposed by linearly combing a quality of service( QoS) matching function and a load balancing in-dex . In accordance with classification results,the weight of the joint optimization function is dynamically ad-justed and admission control is realized by setting a reasonable threshold. Compared with traditional algo-rithm,the proposed algorithm can reduce blocking rate of different services by about 20%;on the other hand,the normalization load of different networks is closer. The algorithm can effectively reduce the traffic congestion rate while balancing the network load,thus effectively improving the overall performance of het-erogeneous wireless network. |
| Author | 郭娟 张森 姚远 |
| AuthorAffiliation | 西安邮电大学通信与信息工程学院,西安710121 西安邮电大学电子工程学院,西安710121 |
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| Author_FL | GUO Juan ZHANG Sen YAO Yuan |
| Author_FL_xml | – sequence: 1 fullname: GUO Juan – sequence: 2 fullname: ZHANG Sen – sequence: 3 fullname: YAO Yuan |
| Author_xml | – sequence: 1 fullname: 郭娟 张森 姚远 |
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| Copyright | Copyright © Wanfang Data Co. Ltd. All Rights Reserved. |
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| DocumentTitleAlternate | A Load Balancing Architecture and Algorithm for Software Defined Wireless Networks |
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| Keywords | load balancing 负载均衡 heterogeneous wireless network 软件定义网络 admission control software defined network 异构无线网络 接纳控制 |
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| Notes | GUO Juana,ZHANG Sena,YAO Yuanb（a. School of Communication and Information Engineering; b. School of Electronic Engineering,Xi＇an University of Posts and Telecommunications, Xi＇an 710121, China） software defined network;heterogeneous wireless network;load balancing;admission control Software defined network（SDN） provides a new way to achieve load balancing in heterogeneous wireless networks. Aload balancing architecture and algorithm for software defined wireless network are proposed. First,the algorithm constructs a list of candidate networks based on the received signal strength （RSS）. Secondly,by calculating the standard deviation of available load ratio in each available candidate network,the load differences among the candidate networks are classified. Then,a jo in t optimization func-tion is proposed by linearly combing a quality of service（ QoS） matching function and a load balancing in-dex. In accordance with classification results,the weight of the joint optimization function is dynamically ad-justed an |
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| Publisher | 西安邮电大学通信与信息工程学院,西安,710121%西安邮电大学电子工程学院,西安,710121 |
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| Snippet | 软件定义网络（ SDN）为实现异构无线网络中的负载均衡提供了新的思路.设计了一种软件 定义的无线网络负载均衡架构,并提出对应算法.首先,根据接收信号强度构建候选网络列表;其 次,根据各候选网络的可用负载比率标准差进行负载差异分级;再次,将服务质量匹配度函数和负载... TN929.5; 软件定义网络(... |
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| SubjectTerms | 异构无线网络 接纳控制 负载均衡 软件定义网络 |
| Title | 一种软件定义无线网络负载均衡架构及算法 |
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