Abstract
In this paper, non-orthogonal-multiple-access (NOMA)-based cell-free massive multiple-input multiple-output (MIMO) is investigated, where the users are grouped into multiple clusters. Exploiting conjugate beamforming, the bandwidth efficiency (BE) of the system is derived while the assumption that the users performing realistic successive interference cancellation (SIC) based on only the knowledge of channel statistics. The max-min fairness problem of maximizing the lowest user BE is investigated and an iterative bisection method is developed to determine the optimal solution to the max-min BE problem. Numerical results are presented for validating the proposed design's performance, and a mode switching scheme is conceived for selecting a specific Mode {OMA, NOMA} that maximizes the system's BE.
| Original language | English |
|---|---|
| Title of host publication | 2019 IEEE International Conference on Communications, ICC 2019 - Proceedings |
| Publisher | Institute of Electrical and Electronics Engineers Inc. |
| ISBN (Electronic) | 9781538680889 |
| DOIs | |
| Publication status | Published - May 2019 |
| Event | 2019 IEEE International Conference on Communications, ICC 2019 - Shanghai, China Duration: 20 May 2019 → 24 May 2019 |
Publication series
| Name | IEEE International Conference on Communications |
|---|---|
| Volume | 2019-May |
| ISSN (Print) | 1550-3607 |
Conference
| Conference | 2019 IEEE International Conference on Communications, ICC 2019 |
|---|---|
| Country/Territory | China |
| City | Shanghai |
| Period | 20/05/19 → 24/05/19 |
Bibliographical note
Funding Information:The work of K. Cumanan and A. G. Burr was supported by H2020-MSCA-RISE-2015 under grant number 690750. L. Hanzo would like to acknowledge the ERC’s financial support of his Advanced Fellow Grant QuantCom. This work was also supported in part by the U.K. Engineering and Physical Sciences Research Council under Grant EP/P03456X/1.
Publisher Copyright:
© 2019 IEEE.