Multiple access is a technique that allows multiple users to share the same communication channel or resource. For example, when you use your phone to call your friend, you are using a multiple access method to transmit your voice over the same frequency band as other callers.
There are different types of multiple access methods, such as frequency division multiple access (FDMA), time division multiple access (TDMA), code division multiple access (CDMA), and orthogonal frequency division multiple access (OFDMA). Each method has its own advantages and disadvantages, depending on the application and the environment. Multiple access methods are essential for wireless communication systems, such as cellular networks, satellite networks, and Wi-Fi networks.
