• Title/Summary/Keyword: negative SINR

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A Study on Performance Analysis for Terrestrial Cloud Transmission Systems (지상파 클라우드 방송 시스템의 성능 분석 연구)

  • Kim, Jeongchang;Park, Sung Ik;Kim, Heung Mook
    • Journal of Broadcast Engineering
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    • v.20 no.2
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    • pp.248-256
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    • 2015
  • In this paper, we model the interference plus noise signal for terrestrial cloud transmission systems and present bit error rate (BER) performances. Since terrestrial cloud transmission systems experience co-channel interference from one or more transmitters, they have to operate under a negative signal-to-interference plus noise ratio (SINR) region. The interference plus noise signal can be modeled as Gaussian random variable under the required SINR region and we observe the BER performance of the cloud transmission system using the derived model. Also, we propose an improved channel estimation scheme by averaging the channel estimates based on least square based interpolation scheme. Simulation results show that the cloud transmission system can operate under negative SINR region using the proposed channel estimation scheme.