Table 2.
Comparison of Indoor Positioning Systems.
| System | Accuracy | Drift | Cost | Calibration | Integration with Network | Hardware | Scalability problems | |
|---|---|---|---|---|---|---|---|---|
| Computational | Monetary | |||||||
| Time | High | No | Low | Medium | No | Yes | Transceiver, accurate clocks | Synchronisation |
| Angle | High | No | Low | Medium | No | Yes | Transceiver, multiple antennas | Synchronisation |
| RSS | Low | No | Low | Low | Easy | No | Transceiver | No |
| Proximity | Poor | No | Low | Low | No | No | Transceiver | No |
| Fingerprinting | Medium | No | High | Low | Laborious | No | Transceiver | Calibration |
| PDR | High | Yes | Medium | Low | No | No | IMU | No |
| SLAM | High | Closed loops | High | Low | No | No | IMU | No |