direct multi-hop time synchronization with constructive interference

ISCAS OpenIR

	direct multi-hop time synchronization with constructive interference
	Wang Yin; Pan Gaofeng; Huang Zhiyu
	2012
会议名称	11th ACM/IEEE Conference on Information Processing in Sensing Networks, IPSN'12
会议录名称	IPSN'12 - Proceedings of the 11th International Conference on Information Processing in Sensor Networks
页码	115-116
会议日期	April 16, 2012 - April 20, 2012
会议地点	Beijing, China
收录类别	EI
ISBN	9781450312271
部门归属	(1) MOE Key Lab. for Information System Security School of Software TNLIST China; (2) Science and Technology on Communication Information Security Control Laboratory China; (3) Institute of Software Chinese Academy of Sciences China
摘要	Multi-hop time synchronization in wireless sensor networks (WSNs) is often time-consuming and error-prone due to random time-stamp delays for MAC layer access and unstable clocks of intermediate nodes. Constructive interference (CI), a recently discovered physical layer phenomenon, allows multiple nodes transmit and forward an identical packet simultaneously. By leveraging CI, we propose direct multi-hop (DMH) time synchronization by directly utilizing the time-stamps from the sink node instead of intermediate nodes, which avoids the error caused by the unstable clock of intermediate nodes. DMH doesn't need decode the flooding time synchronization beacons. Moreover, DMH explores the linear regression technique in CI based time synchronization to counterbalance the clock drifts due to clock skews. © 2012 ACM.; Multi-hop time synchronization in wireless sensor networks (WSNs) is often time-consuming and error-prone due to random time-stamp delays for MAC layer access and unstable clocks of intermediate nodes. Constructive interference (CI), a recently discovered physical layer phenomenon, allows multiple nodes transmit and forward an identical packet simultaneously. By leveraging CI, we propose direct multi-hop (DMH) time synchronization by directly utilizing the time-stamps from the sink node instead of intermediate nodes, which avoids the error caused by the unstable clock of intermediate nodes. DMH doesn't need decode the flooding time synchronization beacons. Moreover, DMH explores the linear regression technique in CI based time synchronization to counterbalance the clock drifts due to clock skews. © 2012 ACM.
关键词	Clocks Data Processing Network Layers Sensor Nodes
主办者	ACM SIGBED; IEEE Signal Processing Society (SPS); ACM; IEEE
语种	英语
内容类型	会议论文
URI标识	http://ir.iscas.ac.cn/handle/311060/15686
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Wang Yin,Pan Gaofeng,Huang Zhiyu. direct multi-hop time synchronization with constructive interference[C],2012:115-116.