| 一种低能耗低延时的无线传感器网络MAC协议 |
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| 引用本文： | 刘善平,林亚平,周四望.一种低能耗低延时的无线传感器网络MAC协议[J].计算机应用,2006,26(2):287-0291. |
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| 作者姓名： | 刘善平 林亚平 周四望 |
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| 作者单位： | 湖南大学,计算机与通信学院,湖南,长沙,410082 |
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| 摘 要： | 传感器网络中数据从多个源节点向sink节点的转发形成数据汇集树，针对此汇集树提出低能耗低延时的LD MAC（Low Delay MAC）协议，解决以往MAC协议中能耗和延时的矛盾问题。LD MAC一方面采用异步duty cycle机制降低能耗，另一方面，从源到sink节点的转发路径上的节点逐个推迟帧的发送起始时间，依次进行接收与发送，减少数据在传输过程中的延时。分析和实验表明LD MAC较好地解决了能耗和延时的矛盾问题。
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| 关 键 词： | 无线传感器网络 MAC协议 低能耗 低延时 |
| 文章编号： | 1001-9081（2006）02-0287-05 |
| 收稿时间： | 2005-08-19 |
| 修稿时间： | 2005-08-192005-11-02 |
Energy-efficient and low-latency MAC protocol for wireless sensor networks |
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| LIU Shan-ping,LIN Ya-ping,ZHOU Si-wang.Energy-efficient and low-latency MAC protocol for wireless sensor networks[J].journal of Computer Applications,2006,26(2):287-0291. |
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| Authors: | LIU Shan-ping LIN Ya-ping ZHOU Si-wang |
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| Affiliation: | College of Computer and Communication, Hunan University, Changsha Hunan 410082, China |
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| Abstract: | In sensor networks,data forwarding from multi-source to sink forms a data gathering tree.For this gathering tree an energy-efficient and low-latency LD-MAC protocol was proposed to solve the conflict of energy-efficient and low-latency in previous MAC protocols.On one hand,LD-MAC adopted asynchronous duty cycle to reduce energy consummation.And on the other hand,by delaying the nodes' sending time and staggering their receiving and sending time hop by hop,it can reduce data forwarding latency.The analysis and simulations show that LD-MAC can solve the conflict efficiently. |
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| Keywords: | wireless sensor networks MAC protocol energy-efficient low-latency |
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