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Integer Frequency Offset Estimation by Pilot Subset Selection for DRM+ Systems with CDD
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 Title & Authors
Integer Frequency Offset Estimation by Pilot Subset Selection for DRM+ Systems with CDD
Kwon, Ki-Won; Cho, Yong-Soo;
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 Abstract
Cyclic delay diversity (CDD) is a simple transmit diversity technique for an OFDM system using multiple transmit antennas. However, the performance of post-FFT estimation, i.e., integer frequency offset (lFO) is deteriorated by high frequency selectivity introduced by CDD. In this paper, the IFO estimation scheme is proposed for OFDM-based DRM+ system with CDD. Based on the pilot subset partitioning, the proposed IFO estimation scheme reduces the effect of performance degradation caused by frequency selectivity in OFDM systems with CDD . The simulation results show that the performance of the proposed IFO estimator is significantly improved when compared to that of the conventional IFO estimator.
 Keywords
DRM+;CDD;IFO;Pilot partitioning;
 Language
Korean
 Cited by
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