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Frame Synchronization Method for Distributed MIMO Terrestrial Broadcasting Systems
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 Title & Authors
Frame Synchronization Method for Distributed MIMO Terrestrial Broadcasting Systems
Ok, Kyu-Soon; Kang, In-Woong; Kim, Youngmin; Seo, Jae Hyun; Kim, Heung Mook; Kim, Hyoung-Nam;
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World`s leading countries are developing next generation digital broadcasting system specifications to support UHDTV (ultra-high definition television) contents and other various services. In order to maximize the transmission capacity by using the bandwidth efficiently, most broadcasting systems adopt MIMO-OFDM. In distributed-MIMO systems, multiple transmit antennas are spatially separated and therefore result in multiple timing offsets. To overcome this problem, this paper proposes a technique using a null symbol to detect each individual signal from distributed transmit antennas. By inserting null symbols before preambles, the receiver can distinguish the signals between each transmit antennas and perform frame synchronization. When the reception time difference is shorter than 500 samples, the proposed method outperforms the conventional method.
Frame synchronization;Distributed MIMO;DVB-T2;ATSC 3.0;
 Cited by
차세대 디지털 방송시스템을 위한 소수배 주파수 오프셋 추정,김호재;강인웅;서재현;김흥묵;김형남;

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