Research Article
An Energy Efficient Simultaneous-Node Repositioning Algorithm for Mobile Sensor Networks
| Reference | Optimization objective | Migration technique | Node type | Area partition | Network architecture | Sensor mobility | hops | Limitations/constraint |
| [28] | Connectivity restoration | Direct | Sensor | Voronoi diagram | Centralized | Robot | 2 | Convergence time: do not consider coverage | [29] | Connectivity restoration | Shifted | Data collector | Zone | Centralized | Robot | 2 | Convergence time: do not consider coverage | [31] | Coverage | Shifted | Sensor | Plane | Centralized | Actuator | 2 | Do not consider coverage | [32] | Connectivity | Shifted | Sensor | Square or hexagon | Centralized | Mobile sensor | 2 | Do not consider connectivity | [33] | Connectivity | Shifted | Data collector | Mesh | Distributed | Robot | 1 | Do not handle actor failure | [34] | Connectivity | Shifted | Data collector | Plane | Centralized | Actuator | 2 | Do not consider coverage | [35] | Connectivity | Shifted | Sensor | Plane | Centralized | Mobile sensor | 2 | Do not consider coverage | [36] | Coverage | Direct | Data collector | Plane | Distributed | Actuator | 1 | Consider neither coverage nor application level interests | [37] | Coverage | Shifted | Data collector | Plane | Distributed | Actuator | 1 | Do not handle actor failure | [38] | Connectivity | Shifted | Sensor | Grid | Distributed | Mobile sensor | 2 | Do not consider connectivity | [39] | Connectivity | Direct | Sensor | Grid | Distributed | Mobile sensor | 2 | Do not consider coverage | [22] | Connectivity and coverage | Direct | Sensors | Grid | Distributed | Mobile sensor | 1 | Do not consider multinode and simultaneous node failure |
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