Adaptive beamforming schemes for SC-FDMA systems with insufficient cyclic prefix

Shiuan Wei Huang, Kuo Ching Fu, Yung Fang Chen

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

When the duration of the cyclic prefix is shorter than that of the channel impulse response duration in single carrier-frequency division multiple access (SC-FDMA) systems, inter-symbol interference (ISI) and inter-carrier interference (ICI) will degrade the system performance. Previously, this problem was solved by a blind beamforming scheme with considering the effects of carrier frequency offsets (CFOs) based on the eigenanalysis in a batch mode [5]. In this paper, adaptive algorithms are proposed to find the beamforming weight vectors without using reference signals. The proposed adaptive algorithms show competitive performance compared to the previous proposed algorithm under the insufficient cyclic prefix (CP), the effects of CFOs, and the co-channel interference scenarios. The simulation results reveal that the proposed adaptive algorithms provide better performance than the previously proposed algorithm in higher mobility environments.

原文???core.languages.en_GB???
主出版物標題Proceeding - COMNETSAT 2012
主出版物子標題2012 IEEE International Conference on Communication, Networks and Satellite
頁面50-54
頁數5
DOIs
出版狀態已出版 - 2012
事件2012 IEEE International Conference on Communication, Networks and Satellite, COMNETSAT 2012 - Bali, Indonesia
持續時間: 12 7月 201214 7月 2012

出版系列

名字Proceeding - COMNETSAT 2012: 2012 IEEE International Conference on Communication, Networks and Satellite

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???event.eventtypes.event.conference???2012 IEEE International Conference on Communication, Networks and Satellite, COMNETSAT 2012
國家/地區Indonesia
城市Bali
期間12/07/1214/07/12

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