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Conference Paper
Group based Spreading and Symbol Puncturing Design for NOMA Systems
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- Authors
- Chanho Yoon, Young-Jo Ko, Taejoong Kim
- Issue Date
- 2019-09
- Citation
- Vehicular Technology Conference (VTC) 2019 (Fall), pp.1-5
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we propose a flexible group-based signature shared access (GSSA) NOMA transmission scheme that spreading length and number of maximum multiplexed users are parameterized. Because the SINR is in an in-direct relationship with the increasing number of multiplexed users, we show that combination of symbol puncturing at the transmitter and ML-DF at the receiver can be an effective solution to lower both BLER and receiver complexity for handling large number of multiplexed uplink users. The proposed NOMA design for IIoT uplink offers a good trade-off point between higher spectral efficiency and high performance (reliability) with low complex multi-user iterative receiver.
- KSP Keywords
- Group-based signature, High performance, Spectral efficiency(SE), Trade-off, Transmission scheme, iterative receivers, multi-user, receiver complexity