| 基于区分服务的无线多媒体传感器网络MAC协议 |
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| 引用本文： | 李方军,曾晓丽,朱西平.基于区分服务的无线多媒体传感器网络MAC协议[J].成都信息工程学院学报,2014,29(3):250-254. |
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| 作者姓名： | 李方军 曾晓丽 朱西平 |
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| 作者单位： | 1. 吉首大学实验室与设备管理中心,湖南吉首,416000
2. 成都信息工程学院网络工程学院,四川成都,610225 |
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| 基金项目： | 四川省科技支撑计划重点资助项目，四川省科技基础条件平台资助项目 |
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| 摘 要： | 针对传统无线多媒体传感器网络MAC协议不具备区分业务的功能,提出一种支持区分服务的无线多媒体传感器网络MAC协议。该协议对不同的业务设置了不同的竞争机制,使节点在发送不同的业务时能够根据信道的具体情况自适应地调整竞争窗口的大小。仿真结果表明:该机制能够有效支持区分服务。在网络负载较重时,多媒体业务的吞吐量比普通业务的吞吐量高10%,网络系统的吞吐量相比于原有的协议能够提高5%。
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| 关 键 词： | 无线多媒体传感器网络 MAC协议 区分服务 竞争窗口 |
A New MAC Protocol based on Differentiated Services in Wireless Multimedia Sensor Networks |
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| LI Fang-jun,ZENG Xiao-li,ZHU Xi-ping.A New MAC Protocol based on Differentiated Services in Wireless Multimedia Sensor Networks[J].Journal of Chengdu University of Information Technology,2014,29(3):250-254. |
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| Authors: | LI Fang-jun ZENG Xiao-li ZHU Xi-ping |
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| Institution: | LI Fang-jun,ZENG Xiao-li,ZHU Xi-ping(Laboratory and Equipment Management Center, Jishou University, Jishou 416000, China;School of Network Engineering,Chengdu University of Information Technology, Chengdu 610225, China) |
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| Abstract: | in wireless multimedia sensor network,the traditional MAC protocol can not support different services.This paper proposed a new MAC protocol named（DS-MAC）based on differentiated services.The main idea is that,use different backoff scheme to different business.As a result,the different business can adjust the contention window size adaptively.Simulation results show that the new protocol can support Differentiated Services effectively,under heavy network load condition,the throughput for Multimedia business are more 10 ％ than Ordinary business,and in terms of achieved throughput,the number is 5 ％. |
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| Keywords: | wireless multimedia sensor networks MAC protocol diffserv contention window |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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