Multiplexing
- Is the process of combining multiple signals and transmitting them over a common channel.
Multiple Access
- When multiplexing is used to allow multiples users to communicate over a single common channel, we call it multiple access. There are several way by which we can use Multiple Access Technique such as TDMA, FDMA, CDMA, W-CDMA, SDMA, OFDMA, SCMA.
The main reason of introduction a variety of access techniques is to overcome issues faced in earlier generation such as;
- Low Throughput
- Low Spectral efficiency
- Resource wastage and many more.
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