Estimation of carrier frequency offset for orthogonal frequency division access uplinks
碩士 === 長庚大學 === 電機工程學系 === 104 === This study investigates the receive technologies of interleaved orthogonal frequency division multiple access (OFDMA) uplink system. Using multiple signal classification (MUSIC) algorithm and the Root-MUSIC algorithm, the carrier frequency offset (CFO) between each...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2016
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| Online Access: | http://ndltd.ncl.edu.tw/handle/xyv55e |
| Summary: | 碩士 === 長庚大學 === 電機工程學系 === 104 === This study investigates the receive technologies of interleaved orthogonal frequency division multiple access (OFDMA) uplink system. Using multiple signal classification (MUSIC) algorithm and the Root-MUSIC algorithm, the carrier frequency offset (CFO) between each user and the base station can be estimated in the time domain. Since the interleaved OFDMA uplink signals show periodicity in certain sampling time points, enabling this study to conduct the MUSIC / Root-MUSIC algorithm in the time domain. According to the CFO estimates, this study also investigates the multiple-access interference (MAI) suppression algorithms. Computer simulation results confirm the effectiveness of the proposed algorithms.
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