Spectrally Efficient Pilot Waveforms for Channel Estimation in OFDM and SC-FDMA
碩士 === 國立臺灣大學 === 電信工程學研究所 === 105 === Pilot-aided channel estimation is essential to orthogonal frequency division multiplexing and single-carrier frequency division multiple access. Under the system setup that data and pilot waveforms are processed individually for enhancing the spectral efficienc...
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| Format: | Others |
| Language: | en_US |
| Published: |
2017
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| Online Access: | http://ndltd.ncl.edu.tw/handle/bb8525 |
| Summary: | 碩士 === 國立臺灣大學 === 電信工程學研究所 === 105 === Pilot-aided channel estimation is essential to orthogonal frequency division multiplexing and single-carrier frequency division multiple access. Under the system setup that data and pilot waveforms are processed individually for enhancing the spectral efficiency of the composite waveform, pilot patterns are designed here to jointly optimize channel estimation on quasi-static multipath channels and provide extremely high spectral compactness by suppressing spectral sidelobes. Among the demonstrated pilot patterns achieving optimum channel estimation, the pilot waveforms using DI-typed pilot patterns developed from the proposed procedures are shown to exhibit higher spectral compactness than conventional pilot waveforms.
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