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학술대회 Directional Delay Spread Characteristics Based on Indoor Channel Measurements at 28GHz
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김명돈, 양금위, 권헌국, 이주열
International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC) 2015, pp.403-407
15MR3700, (통합)모바일 빅뱅 시대의 주파수 효율 개선 핵심 기술 개발, 최형도
Millimeter-wave propagation characteristics and channel models are being recently studied for applicability of the fifth generation (5G) mobile communication systems. To overcome the larger path loss on the higher frequency band above 6 GHz, highly directive antennas or beamforming techniques using large array antennas can be used to establish a reliable communication link between a transmitter and a receiver. In this paper, a recently conducted channel measurement campaign is introduced which makes use of a direction-scanning-sounding technique to study channel characteristics of 28 GHz millimeter-wave propagation in indoor environments. The measurement campaign has been conducted in passenger terminals at Seoul Railway Station and Incheon International Airport, which are representative indoor hotspot regions in Korea. Based on our experimental data, we investigate the relationship between the beamwidth of antenna and r.m.s. delay spread characteristics.
KSP 제안 키워드
28 GHz, 6 GHz, Beamforming technique, Channel Characteristics, Channel measurement, Communication link, Delay spread, Experimental Data, Fifth Generation(5G), Indoor Environment, Indoor hotspot