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학술대회 Relay-Assisted Handover to Overcome Blockage in Millimeter-Wave Networks
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김원익, 송재수, 백승권
International Symposium on Personal, Indoor, and Mobile Radio Communication (PIMRC) 2017, pp.1-5
17HF1600, (통합)초연결 스마트 서비스를 위한 5G 이동통신 핵심기술개발, 정현규
There is a growing interest in millimeterwave (mmWave) technologies that can significantly increase the network capacity thanks to the availability of huge bandwidth and high-dimensional antennas. However, short wavelength and the use of narrow directional beams have made mmWave communications susceptible to blockages that could lead to high penetration losses. In this paper, we conduct two studies in mmWave networks: Firstly, we analyze and characterize link disruption due to two blockage scenarios, to efficiently explain mmWave channel dynamics. Next, we propose a Relay-assisted Handover (RHO) scheme to overcome the blockages by combining relay and handover schemes. Through a simulation study on two blockage scenarios, we prove the proposed scheme improves the link quality performance in an environment in which two blockage types, short-term blockage and longterm blockage, coexist.
KSP 제안 키워드
Handover Scheme, High penetration, High-dimensional, Link quality, MmWave channel, MmWave networks, Penetration loss, Relay-assisted, Simulation study, millimeter wave(mmWave), mmWave communication