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Detail
Journal Article
NOMA Transceiver Design for Highway Transportation in Mobile Hotspot Networks
- Authors
- Bing Hui, Junhyeong Kim, Sung-Woo Choi, Heesang Chung, Ilgyu Kim, Hoon Lee
- Issue Date
- 2016-12
- Citation
- ETRI Journal, v.38, no.6, pp.1042-1051
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- High Speed, Highway transportation, Mobile Broadband, Mobile Hotspot, Modulation order, Network deployment, Nonorthogonal multiple access(NOMA), Practical implementation, QAM constellation, SIC receiver, Successive Interference Cancellation