基于位图索引的无线传感器网络可靠传输协议

被引:1
作者
周韧研 [1 ,2 ,3 ]
刘雷波 [1 ,2 ,3 ]
尹首一 [1 ,2 ,3 ]
魏少军 [1 ,2 ,3 ]
机构
[1] 清华大学移动计算研究中心
[2] 清华大学微电子学研究所
[3] 清华信息科学与技术国家实验室
关键词
无线传感器网络; 无线图像传感器网络; 可靠传输; 位图索引; 终端-网关; 错误恢复;
D O I
暂无
中图分类号
TN929.5 [移动通信]; TP212.9 [传感器的应用];
学科分类号
080402 ; 080904 ; 0810 ; 081001 ; 080202 ;
摘要
根据无线传感器网络中大量上行数据流实时传输的需求,提出一种基于位图索引的可靠传输协议(BRDT)。该协议使用迭代方式完成一组大量数据的传输。每次迭代的上行数据流采用无重传传输以减少延迟,并采用可靠后项传输传送带有错误标识的位图索引以恢复丢失数据。在已有低功耗无线图像传感器网络Z-EYE系统中实现并进行验证,结果表明,与RMST协议相比,BRDT对下层的服务需求少,在网络质量较差的情况下,BRDT的性能明显优于NACK重传方法,在同等测试条件下,BRDT的传输效率优于PSFQ协议。
引用
收藏
页码:63 / 66
页数:4
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