I. INTRODUCTION  
A. Navigation: How can you read this paper?  

II. MACHINE LEARNING ALGORITHMS  
A. Supervised Learning  
B. Unsupervised Learning  
C. Reinforcement Learning (RL)  

III. TAXONOMY OF MEDIUM ACCESS MECHANISMS  
A. Contention-Based  
B. Contention-Free  

IV. MAC PROTOCOL DESIGN ISSUES  

V. WIRELESS SENSOR NETWORKS (WSN)  

VI. WIRELESS NETS  

VII. BODY SENSOR NETWORKS (BSNS)  

VIII. SPECTRUM SENSING  

IX. SECURITY  

X. CONCLUSION