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학술지 Multi-antenna Diversity Gain in Terrestrial Broadcasting Receivers on Vehicles: A Coverage Probability Perspective
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저자
안성준, 이재영, 임보미, 권해찬, 허남호, 박성익
발행일
202106
출처
ETRI Journal, v.43 no.4, pp.400-413
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.2020-0242
협약과제
21HH4100, 5G와 방송망(ATSC 3.0) 연동 전송 기술 개발, 박성익
초록
This paper theoretically and empirically explores the reliability gain that can be obtained by installing multiple antennas in on-vehicle broadcasting receivers. Analytical derivations reveal that maximal-ratio-combining-based diversity allows a multi-antenna receiver (MR) to achieve significantly better coverage probability than a single-antenna receiver (SR). In particular, the notable MR gains for low-power reception and high-throughput services are highlighted. We also discuss various aspects of mobile MRs, including geometric coverage, volume of the users served, and impact of receiver velocity. To examine the feasibility of MRs in the real world, extensive field experiments were conducted, particularly with on-air ATSC 3.0 broadcast transmissions. Relying on the celebrated erroneous second ratio criterion, MRs with two and four antennas were verified to achieve notable reliability gains over SRs in practice. Furthermore, our results also prove that layered-division multiplexing can cope better with receiver mobility than traditional time-division multiplexing when multiple services are intended in the same radio frequency channel.
키워드
Coverage probability, mobile broadcasting, multi-antenna diversity, receiver-on-vehicle
KSP 제안 키워드
ATSC 3.0, Analytical derivation, Antenna diversity, Coverage probability, Diversity gain, Field experiment, High throughput(HTP), Low-Power, Maximal-ratio-combining(MRC), Mobile Broadcasting, Radio Frequency(RF)
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