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Proposal of combination of NOMA and beamforming methods for downlink multi-users systems

Vinh, H.D. and Van Son, V. and Hoang, T.M. and Hiep, P.T. (2019) Proposal of combination of NOMA and beamforming methods for downlink multi-users systems. In: 3rd International Conference on Recent Advances in Signal Processing, Telecommunications and Computing, SigTelCom 2019, 21 March 2019 through 22 March 2019.

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Abstract

In this paper, a downlink multi-users (MUs) system, where the MUs are clustered into several clusters based on the located regions, is taken into consideration. A combinition of beamforming and no-orthogonal multiple access (NOMA) methods is proposed and the base station (BS) communicates instantaneously with all users in multiple clusters by the proposed method. The close-form expressions of outage probability and ergodic capacity are derived to evaluate our proposed method. The derived analytical results are verified by Monte Carlo simulations and the proposed method is compared with conventional orthogonal multiple access (OMA) method. The results indicate that our proposed method can improve the performance of downlink MUs systems more than the OMA method. © 2019 IEEE.

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculties > Faculty of Radio-Electronic Engineering
Identification Number: 10.1109/SIGTELCOM.2019.8696143
Uncontrolled Keywords: Beamforming; Channel capacity; Intelligent systems; Multiple access interference; close-form expression; Ergodic capacity; Multiple access; Outage probability; Successive interference cancellations; Monte Carlo methods
Additional Information: Conference code: 147634. Language of original document: English.
URI: http://eprints.lqdtu.edu.vn/id/eprint/9344

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