I. INTRODUCTION  
A. Boundaries of Our Scope  
B. A Map of the Simultaneous Transmission Based Communication Techniques  

II. MULTIPLE ACCESS  
A. Code Division Multiple Access (CDMA)  
B. Non-Orthogonal Multiple Access (NOMA)  
C. Type-Based Multiple Access (TBMA)  
D. Compute-and-Forward Multiple Access (CFMA)  

III. MULTIPLE ANTENNA  
A. Integer-Forcing Architecture  

IV. NETWORK CODING  
A. Physical Layer Network Coding (PLNC)  
B. Compute-and-Forward (CP&F)  

V. INTERFERENCE / COMPUTATION / FUNCTION ALIGNMENT  

VI. FUNCTION COMPUTATION  
A. Digital Function Computation  
B. Analog Function Computation (AFC)  

VII. FEDERATED LEARNING  

VIII. SPECTRUM SENSING  

IX. DETECTION AND ESTIMATION  
A. Detection  
B. Estimation  

X. GOSSIP AND CONSENSUS  

XI. SECURITY  

XII. CONCLUSION  
A. Challenges and Open Areas