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Open Access
NOMA-Based Optimal Multiplexing for Multiple Downlink Service Channels to Maximize Integrated System Throughput

Teruaki SHIKUMA, Yasuaki YUDA, Kenichi HIGUCHI

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Summary :

We propose a novel non-orthogonal multiple access (NOMA)-based optimal multiplexing method for multiple downlink service channels to maximize the integrated system throughput. In the fifth generation (5G) mobile communication system, the support of various wireless communication services such as massive machine-type communications (mMTC), ultra-reliable low latency communications (URLLC), and enhanced mobile broadband (eMBB) is expected. These services will serve different numbers of terminals and have different requirements regarding the spectrum efficiency and fairness among terminals. Furthermore, different operators may have different policies regarding the overall spectrum efficiency and fairness among services. Therefore, efficient radio resource allocation is essential during the multiplexing of multiple downlink service channels considering these requirements. The proposed method achieves better system performance than the conventional orthogonal multiple access (OMA)-based multiplexing method thanks to the wider transmission bandwidth per terminal and inter-terminal interference cancellation using a successive interference canceller (SIC). Computer simulation results reveal that the effectiveness of the proposed method is especially significant when the system prioritizes the fairness among terminals (including fairness among services).

Publication
IEICE TRANSACTIONS on Communications Vol.E103-B No.11 pp.1367-1374
Publication Date
2020/11/01
Publicized
2020/05/20
Online ISSN
1745-1345
DOI
10.1587/transcom.2019EBP3241
Type of Manuscript
PAPER
Category
Wireless Communication Technologies

Authors

Teruaki SHIKUMA
  Tokyo University of Science
Yasuaki YUDA
  Panasonic Corporation
Kenichi HIGUCHI
  Tokyo University of Science

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