Open AccessNOMA Transceiver Design for Highway Transportation in Mobile Hotspot Networks
Author(s) -
Hui Bing,
Kim Junhyeong,
Choi SungWoo,
Chung Heesang,
Kim Ilgyu,
Lee Hoon
Publication year - 2016
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.16.2716.0023
Subject(s) - noma , computer science , transceiver , demodulation , transmitter , hotspot (geology) , computer network , mobile broadband , gigabit , broadband , single antenna interference cancellation , electronic engineering , telecommunications , telecommunications link , decoding methods , wireless , engineering , channel (broadcasting) , geophysics , geology
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.