| Adaptive IEEE 802.15.4 protocol for energy efficient, reliable and timely communications Recent countries visiting this post |  |
 | 8 | United States |
 | 3 | |
 | 1 | China |
| Adaptive IEEE 802.15.4 protocol for energy efficient, reliable and timely communications Recent countries visiting this post | |
| 8 | United States |
| 3 | |
| 1 | China |