Name
Abstract | ||
|---|---|---|
Sensor replacement is important for sensor networks to provide continuous sensing services. Existing approaches relocate redundant nodes to fill the holes created by failed sensors and require all or most sensor nodes to have mobility. However, mobility equipment is expensive while technology trends are scaling sensors to be smaller and cheaper. In this paper, we propose to use a small number of mobile robots to replace failed sensors in a large-scale static sensor network. We study algorithms for detecting and reporting sensor failures and coordinating the movement of robots that minimize the motion energy of mobile robots and the messaging overhead incurred to the sensor network. A manager receives failure reports and determines which robot to handle a failure. We study three algorithms: a centralized manager algorithm, a fixed distributed manager algorithm, and a dynamic distributed manager algorithm. Our simulations show that: (a) The centralized and the dynamic distributed algorithms have lower motion overhead than the fixed distributed algorithm. (b) The centralized algorithm is less scalable than the two distributed manager algorithms. (c) The two distributed algorithms have higher messaging cost than the centralized algorithm. Hence, the optimal choice of the coordination algorithm depends on the specific scenarios and objectives being optimized. |
Year | DOI | Venue |
|---|---|---|
2006 | 10.1109/ICDCSW.2006.90 | ICDCS Workshops |
Keywords | Field | DocType |
coordination algorithm,mobile robots,failed sensor,centralized algorithm,sensor failure,mobile robot,failed sensor nodes,sensor node,centralized manager algorithm,sensor network,large-scale static sensor network,manager algorithm,robot kinematics,routing,distributed algorithms,distributed algorithm | Motion detection,Computer science,Brooks–Iyengar algorithm,Robot kinematics,Computer network,Distributed algorithm,Robot,Wireless sensor network,Mobile robot,Distributed computing,Scalability | Conference |
ISBN | Citations | PageRank |
0-7695-2541-5 | 7 | 0.57 |
References | Authors | |
6 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yongguo Mei | 1 | 284 | 18.29 |
| Changjiu Xian | 2 | 239 | 12.10 |
| Saumitra Das | 3 | 143 | 8.09 |
| Y. Charlie Hu | 4 | 3357 | 181.75 |
| Yung-Hsiang Lu | 5 | 2165 | 161.51 |