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| 基于业务区分的无线多媒体传感器网络QoS体系结构 | |
| 引用本文： | 晏鳌,白光伟,曹磊.基于业务区分的无线多媒体传感器网络QoS体系结构[J].计算机工程与应用,2012,48(3):57-60. |
| 作者姓名： | 晏鳌 白光伟 曹磊 |
| 作者单位： | 1. 南京工业大学 计算机科学与技术系,南京,210009 2. 南京工业大学 计算机科学与技术系,南京210009;南京大学 计算机软件新技术国冢重点实验室,南京210093 3. 南京大学 计算机软件新技术国冢重点实验室,南京,210093 |
| 基金项目： | 国家自然科学基金（No.60673185,61073197）; 江苏省自然科学基金（No.BK2010548）; 教育部留学回国人员科研启动基金（教外司留[2007]1108号） |
| 摘 要： | 无线多媒体传感器网络(WMSNs)的网络服务质量(QoS)一直是人们关心的核心问题,然而目前WMSNs的QoS保障研究主要针对单个协议层或特定应用场景,缺少系统性的QoS体系框架研究。结合无线传感器网络自身特点,利用图论对网络进行建模。在此基础上,提出一种三层可计算QoS指标体系,并根据各种应用不同QoS需求将应用分为四类,设计出一种基于业务区分的无线多媒体传感器网络QoS体系结构(DQoSAW)。以传输MPEG视频流为例对DQoSAW进行验证,实验结果表明DQo-SAW能够显著改进WMSNs的整体性能。 |
| 关 键 词： | 无线多媒体传感器网络 QoS体系结构 区分服务 跨层设计 |
| 修稿时间： | |
DiffServ based QoS architecture for wireless multimedia sensor networks |
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| YAN Ao , BAI Guangwei , CAO Lei.DiffServ based QoS architecture for wireless multimedia sensor networks[J].Computer Engineering and Applications,2012,48(3):57-60. | |
| Authors: | YAN Ao BAI Guangwei CAO Lei |
| Affiliation: | 1.Department of Computer Science and Technology,Nanjing University of Technology,Nanjing 210009,China 2.State Key Laboratory for Novel Software Technology,Nanjing University,Nanjing 210093,China |
| Abstract: | How to provide a satisfactory level of Quality of Service（QoS） is the key issue for Wireless Multimedia Sensor Networks（WMSNs）.Although there have been significant efforts of various mechanisms to achieve QoS in specified layers or given applications,relatively little research work has focused on a QoS model or framework in wireless sensor networks.In this paper,a network model is proposed based on graph theory,according to the characteristics of WSNs.A QoS metrics architecture with three layers is presented.Considering the different requirements for QoS,the various applications as four types are classified,and a QoS Architecture Based on DiffServ for Wireless Multimedia Sensor Networks（DQoSAW） is proposed.The case of MPEG media streaming is taken to demonstrate the efficiency of the DQoSAW.Simulation experiment results show that the DQoSAW provides a significant performance improvement for WMSNs. |
| Keywords: | Wireless Multimedia Sensor Networks（WMSNs） Quality of Service（QoS） architecture DiffServ cross-layer design |
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