Abstract
This letter considers a legacy massive multiple-input multiple-output (MIMO) network, in which spatial beams have been preconfigured for near-field users, and proposes to use the non-orthogonal multiple access (NOMA) principle to serve additional far-field users by exploiting the spatial beams preconfigured for the legacy near-field users. Our results reveal that the coexistence between near-field and far-field communications can be effectively supported via NOMA, and that the performance of NOMA-assisted massive MIMO can be efficiently improved by increasing the number of antennas at the base station.
Original language | English (US) |
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Pages (from-to) | 1429-1433 |
Number of pages | 5 |
Journal | IEEE Wireless Communications Letters |
Volume | 12 |
Issue number | 8 |
DOIs | |
State | Published - Aug 1 2023 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Control and Systems Engineering
Keywords
- Non-orthogonal multiple access (NOMA)
- beamforming
- near-field communications