Medium access control protocol design for wireless communications and networks review

<p><span>Medium access control (MAC) protocol design plays a crucial role to increase the performance of wireless communications and networks. The channel mechanism is provided by MAC layer share medium multiple stations. Different types networks have different requirements such as throughput, delay, power consumption, fairness, reliability, network density, therefore, for these must satisfy their requirements. In this work, we proposed two multiplexing methods modern networks: Massive multiple-input-multiple-output (MIMO) domain non-orthogonal (PD-NOMA). first research method namely MIMO uses massive number antenna elements improve both spectral efficiency energy efficiency. On other hand, second (PD-NOMA) allows signals same orthogonal resources allocating level each station. PD-NOMA has better over methods. A review previous works regarding classified based on categories. main contribution work show importance with added optimal functionalities efficiencies networks.</span></p>