Non-orthogonal multiple access (NOMA) has become an important principle for the design of radio access techniques for the fifth generation (5G) wireless networks.
NOMA Technique is based on the key concept, where more than one user is served in each orthogonal resource block.
So now for your Question: why NOMA is suitable for 5G ?
The Answer is due to below reasons :
- Spectral efficiency gain, unlike NOMA, conventional orthogonal multiple access (OMA) techniques, such as time division multiple access (TDMA) and orthogonal frequency division multiple access (OFDMA) support a single user.
- NOMA can strongly support massive connectivity, which in return supports the Internet of Things (IoT) functionalities.
- NOMA encourages multiple users to employ exactly the same code.
