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학술지 Performance Analysis on Channel Estimation with Antenna Diversity of OFDM Reception in Multi-path Fast Fading Channel
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저자
오현서, 강도욱
발행일
201812
출처
Wireless Personal Communications, v.103 no.3, pp.2423-2431
ISSN
0929-6212
출판사
Springer
DOI
https://dx.doi.org/10.1007/s11277-018-5919-7
협약과제
18ZS1300, 주력 산업 고도화를 위한 지능형 상황인지 기반 기술 개발, 장병태
초록
Vehicle to everything (V2X) communication supports vehicle to anything communication for vehicle safety and cooperative Intelligent Transport System in vehicular environments. IEEE 802.11p modem has been developed and applied for V2X communication system. V2X radio channel has multipath fast fading due to moving vehicles and surrounded road structure. We proposed a new DFCE-AD which combines DFCE and antenna diversity for OFDM reception and analyzed the performance improvement in multipath fading channel. Through computer simulation, SNR gain of DFCE-AD over DFCE for QPSK modulation is approximately 6혻dB at PER = 10%. In other word, PER of DFCE-AD is improved over that of DFCE by about 20% at SNR = 10혻dB. This result will be applied for the short sized packet and low order OFDM modulation in vehicular multipath fading channel.
키워드
Decision feedback channel estimation (DFCE), Decision feedback channel estimation with antenna diversity (DFCE-AD), Multi-path fading channel, Packer error rate (PER), V2X, WAVE
KSP 제안 키워드
Antenna diversity, Channel estimation(CE), Communication system, Computer simulation(MC and MD), Decision feedback, Feedback channel, IEEE 802.11p, Intelligent Transport Systems(ITS), Moving Vehicle, Multipath fading channel, OFDM Modulation