Beamwidth control for directional transmission beam switching in vehicular communication = 차량 통신 환경에서 지향성 송신 빔 변환을 위한 빔 폭 제어

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This paper considers a vehicular system that enables high data rate wireless service for moving vehicle. In vehicular communications, higher data transmission rate is required in order to meet the needs of vehicles and a directional transmission beam must be used for the reliable communications. Beam alignment is essential when the directional beam is used, but there is a lot of overhead because the vehicle that moves at high speed require more frequent beam realignment. The beam switching technique using initial information of the vehicle can reduce the overhead because the transmitter predicts the position of vehicle and switches the transmission beam sequentially. The scenario, where the road side unit (RSU) deployed along the roadside is trying to deliver the data to the moving vehicle, is considered. There may be a change in speed of the vehicle as it passes through the coverage of the road side unit. As the RSU knows only the initial speed and position of the vehicle, the actual position of the vehicle is different from the vehicle's position predicted by the RSU. Considering the speed variation of the vehicle, an optimal beam design that maximizes the average data rate is analytically proposed. Moreover, the analytic results are very close to the simulation results and the optimal beam design obtained analytically is almost same as the optimal beam design obtained from the exhaustive search.
Advisors
Choi, Wanresearcher최완researcher
Description
한국과학기술원 :전기및전자공학부,
Publisher
한국과학기술원
Issue Date
2018
Identifier
325007
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 전기및전자공학부, 2018.2,[iii, 25 p. :]

Keywords

Vehicular communications▼aBeam switching technique▼aOptimal beam design; 차량 통신▼a빔 스위칭 기법▼a최적의 송신 빔 폭

URI
http://hdl.handle.net/10203/266966
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=733978&flag=dissertation
Appears in Collection
EE-Theses_Master(석사논문)
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