Shallow Water MCM and ASW Using Off-Board, Autonomous Sensor Networks and Multistatic, Time-Reversal Acoustics

2007 ◽  
Author(s):  
H-C Song ◽  
P. Gerstoft ◽  
W. A. Kuperman ◽  
W. S. Hodgkiss
Keyword(s):  
Sensor Networks ◽  
Shallow Water ◽  
Time Reversal ◽  
Autonomous Sensor ◽  
Time Reversal Acoustics

scholarly journals Towards an Optimal Energy Consumption for Unattended Mobile Sensor Networks through Autonomous Sensor Redeployment

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Jian Chen ◽  
Jie Jia ◽  
Yingyou Wen ◽  
Dazhe Zhao
Keyword(s):  
Energy Consumption ◽  
Sensor Networks ◽  
Mathematical Problem ◽  
Mobile Sensor Networks ◽  
Sensor Nodes ◽  
Target Area ◽  
Mobile Sensor ◽  
Energy Hole ◽  
Autonomous Sensor ◽  
Optimal Node

Energy hole is an inherent problem caused by heavier traffic loads of sensor nodes nearer the sink because of more frequent data transmission, which is strongly dependent on the topology induced by the sensor deployment. In this paper, we propose an autonomous sensor redeployment algorithm to balance energy consumption and mitigate energy hole for unattended mobile sensor networks. First, with the target area divided into several equal width coronas, we present a mathematical problem modeling sensor node layout as well as transmission pattern to maximize network coverage and reduce communication cost. And then, by calculating the optimal node density for each corona to avoid energy hole, a fully distributed movement algorithm is proposed, which can achieve an optimal distribution quickly only by pushing or pulling its one-hop neighbors. The simulation results demonstrate that our algorithm achieves a much smaller average moving distance and a much longer network lifetime than existing algorithms and can eliminate the energy hole problem effectively.

scholarly journals Pressure sensitivity kernels applied to time-reversal acoustics

2008 ◽  
Vol 124 (1) ◽  
pp. 98-112 ◽  
Author(s):  
Kaustubha Raghukumar ◽  
Bruce D. Cornuelle ◽  
William S. Hodgkiss ◽  
William A. Kuperman
Keyword(s):  
Time Reversal ◽  
Pressure Sensitivity ◽  
Time Reversal Acoustics

scholarly journals Passive Time Reversal Acoustic Communications Through Shallow-Water Internal Waves

2010 ◽  
Vol 35 (4) ◽  
pp. 756-765 ◽  
Author(s):  
Aijun Song ◽  
Mohsen Badiey ◽  
Arthur E. Newhall ◽  
James F. Lynch ◽  
Harry A. DeFerrari ◽  
...  
Keyword(s):  
Shallow Water ◽  
Internal Waves ◽  
Time Reversal ◽  
Acoustic Communications
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