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학술지 NOMA Transceiver Design for Highway Transportation in Mobile Hotspot Networks
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저자
회빙, 김준형, 최성우, 정희상, 김일규, 이훈
발행일
201612
출처
ETRI Journal, v.38 no.6, pp.1042-1051
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.16.2716.0023
협약과제
16MF1200, (통합)초연결 스마트 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
초록
The mobile hotspot network (MHN), which is capable of providing a data rate of gigabits per second at high speed, is considered a potential use case of the future enhanced mobile broadband for 5G. Because a unidirectional network deployment has been considered for an MHN, non-orthogonal multiple access (NOMA) can be employed to improve the system performance. For a practical implementation of NOMA under an MHN highway scenario where multiple pieces of MHN terminal equipment are served through the same beam simultaneously, a NOMA transceiver is proposed in this paper. For the NOMA transmitter, Gray-coded QAM constellation mapping is extended to arbitrary modulation order q. For the NOMA receiver, successive interference cancellation (SIC) is no longer necessary, and instead, a parallel demodulation is proposed. The numerical and simulation results suggest that the proposed NOMA transceiver outperforms the conventional NOMA SIC receiver and can be flexibly used for an MHN highway scenario.
KSP 제안 키워드
High Speed, Highway transportation, Mobile Broadband, Mobile Hotspot, Modulation order, Non-orthogonal multiple access(NOMA), Practical implementation, QAM Constellation, SIC receiver, Successive Interference Cancellation, System performance