08MR3800, Development of Distributed Translator Technology for Terrestrial DTV,
Heung Mook Kim
Abstract
분산중계 방식은 기존 중계기를 이용하는 MFN(Multiple Frequency Network)과 OCR(On Channel Repeater)을 이용한 SFN (Single Frequency Network)에 비해 기존의 송출시설을 최대한 활용할 수 있고, 짧은 시간에 구축이 가능하여 비용이 효율적이며, 주파수 이용 효율을 높일 수 있는 방식이다. 본 필드 테스트는 이러한 분산중계 방식의 성능을 검증하고자 서울 서북부 지역을 중심으로 3세대, 5세대 그리고 6세대 수신기를 이용하여 총 30개 지점에 대하여 수신 전계강도와 노이즈마진 및 수신가능각을 측정하였고, 수신화질의 주관적 평가를 수행하였다. 필드 테스트를 수행한 결과 모든 조건의 수신기에서 수신 성능의 향상을 보였다. 각 수신기별 특성을 볼 때 3세대 수신기에 비해 5세대 수신기 및 6세대 수상기는 수신율의 향상뿐만 아니라 수신가능각도 증가되어 분산중계망의 가능성을 알 수 있었다.
KSP Keywords
Multiple frequency, single frequency network(SFN)
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J. Kim et. al, "Trends in Lightweight Kernel for Many core Based High-Performance Computing", Electronics and Telecommunications Trends. Vol. 32, No. 4, 2017, KOGL Type 4: Source Indication + Commercial Use Prohibition + Change Prohibition
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