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New OFDM Schemes Robust to Doppler and PAR Effects for Satellite Communications  

Hong, Sang-Wan (유한대학교 정보통신과)
Lee, Byung-Seub (한국항공대학교 항공전자공학부)
Publication Information
Journal of Satellite, Information and Communications / v.10, no.2, 2015 , pp. 60-69 More about this Journal
Abstract
A new and effective Doppler effects compensation method based on constellation estimation as well as an average power saving strategy by modified modulation scheme utilizing zero point constellation are presented with theoretical analysis and relevant simulations. The suggested schemes are proved to be very effective for satellite OFDM signals relayed by power limiting transponder for the mobile terminal on high speed vehicles.
Keywords
OFDM; Doppler Effects; PAR; Nonlinear Distortion;
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