| Title: | direct multi-hop time synchronization with constructive interference |
| Author: | Wang Yin
; Pan Gaofeng
; Huang Zhiyu
|
| Source: | IPSN'12 - Proceedings of the 11th International Conference on Information Processing in Sensor Networks
|
| Conference Name: | 11th ACM/IEEE Conference on Information Processing in Sensing Networks, IPSN'12
|
| Conference Date: | April 16, 2012 - April 20, 2012
|
| Issued Date: | 2012
|
| Conference Place: | Beijing, China
|
| Keyword: | Clocks
; Data processing
; Network layers
; Sensor nodes
|
| Indexed Type: | EI
|
| ISBN: | 9781450312271
|
| Department: | (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
|
| Sponsorship: | ACM SIGBED; IEEE Signal Processing Society (SPS); ACM; IEEE
|
| Abstract: | 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. |
| English Abstract: | 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. |
| Language: | 英语
|
| Content Type: | 会议论文
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| URI: | http://ir.iscas.ac.cn/handle/311060/15686
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| Appears in Collections: | 软件所图书馆_会议论文
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| Recommended Citation: | |
Wang Yin,Pan Gaofeng,Huang Zhiyu. direct multi-hop time synchronization with constructive interference[C]. 见:11th ACM/IEEE Conference on Information Processing in Sensing Networks, IPSN'12. Beijing, China. April 16, 2012 - April 20, 2012.
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