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학술지 RoF-based Indoor Distributed Antenna System that Can Simultaneously Support 5G mmWave and 6G Terahertz Services
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저자
문상록, 성민규, 김언상, 이준기, 조승현, 김준영
발행일
202201
출처
Optics Express, v.30 no.2, pp.1521-1533
ISSN
1094-4087
출판사
Optical Society of America (OSA)
DOI
https://dx.doi.org/10.1364/OE.445565
협약과제
21ZH1100, 연결의 한계를 극복하는 초연결 입체통신 기술 연구, 박승근
초록
The telecommunication society is paving the way toward ultra-high frequency regions, including the millimeter wave (mmWave) and sub-terahertz (sub-THz) bands. Such high-frequency electromagnetic waves induce a variety of physical constraints when they are used in wireless communications. Inevitably, the fiber-optic network is deeply embedded in the mobile network to resolve such challenges. In particular, the radio-over-fiber (RoF)-based distributed antenna system (DAS) can enhance the accessibility of next-generation mobile networks. The inherent benefits of RoF technology enhance the DAS network in terms of practicality and transmission performance by enabling it to support the 5G mmWave and 6G THz services simultaneously in a single optical transport link. Furthermore, the RoF allows the indoor network to be built based on the cascade architecture; thus, a service zone can be easily added on request. This study presents an RoF-based multi-service DAS network and experimentally investigates the feasibility of the proposed system.
KSP 제안 키워드
Cascade architecture, Electromagnetic waves(EM), Fiber-optic network, High Frequency(HF), Indoor network, Mobile networks, Multi-service, Next-generation, Optical transport, Physical Constraints, Sub-THz