From: Adaptive couple-resolution blocking protocol for repeated tag identification in RFID systems
Slot | Reader query | Tag response | Received response | Identified tags | ||||
---|---|---|---|---|---|---|---|---|
Tag 0000 | Tag 0010 | Tag 0101 | Tag 1001 | Tag 1111 | ||||
 | First phase |  |  |  |  |  |  |  |
1 | 000, 001 | 0000 | 0001 | Â | Â | Â | Collision | 0000, 0001 |
2 | 10, 11 | Â | Â | Â | 1001 | Â | 1001 | 1001 |
 | Second phase |  |  |  |  |  |  |  |
3 | 0 | Â | Â | 0101 | Â | Â | 0101 | 0101 |
4 | 1 | Â | Â | Â | Â | 1111 | 1111 | 1111 |