| Cross Layer Aware Adaptive MAC based on Knowledge Based Reasoning for Cognitive Radio Computer Networks Recent countries visiting this post |  |
 | 5 | United States |
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| Cross Layer Aware Adaptive MAC based on Knowledge Based Reasoning for Cognitive Radio Computer Networks Recent countries visiting this post | |
| 5 | United States |
| 2 | |
| 1 | Sweden |
| 1 | Japan |