상세정보
학술대회
Group based Spreading and Symbol Puncturing Design for NOMA Systems
- 발행일
- 201909
- 출처
- Vehicular Technology Conference (VTC) 2019 (Fall), pp.1-5
- 협약과제
- 19HH1900, 셀룰러 기반 산업 자동화 시스템 구축을 위한 5G 성능 한계 극복 저지연, 고신뢰, 초연결 통합 핵심기술 개발, 김태중
- 초록
- 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 제안 키워드
- Group-based signature, High performance, Iterative Receiver, Spectral efficiency(SE), Trade-off, Transmission scheme, multi-user, receiver complexity