ISSN 1002-1027  CN 11-2952/G2

Acta scientiarum naturalium Universitatis Pekinensis

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PN Based Channel Estimation in SC-FDE System

JIAO Xianjun1, ZHANG Lei, XIANG Haige   

  • Received:2006-03-21 Online:2007-01-20 Published:2007-01-20

Abstract: A PN (Pseudo Noise) based Channel Estimation (CE) algorithm using circular correlation is proposed, and is implemented in Single Carrier Frequency Domain Equalization (SC-FDE) system. The new CE algorithm is compared to typical frequency-domain algorithms, and it is found that new algorithm has lowest complexity and acceptable performance. A no-guard-interval PNA-SC-FDE (PN Assisted SC-FDE) system is studied and a simpler receiving procedure for interference-canceling based receiver is proposed. Simulation shows that the performance of receiver with interference-canceling and new CE algorithm can approach the performance of receiver with perfect CSI (Channel State Information).