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Correction of Mean Phase Error for OFDM and SC-CP Systems using Decision-Directed Method  

Kim Ji-Heon (Technology Division, Agency for Defense Development)
Kim Whan-Woo (Division of Electrical and Computer Engineering, Chungnam National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.42, no.12, 2005 , pp. 77-84 More about this Journal
Abstract
The orthogonal frequency division multiplexing (OFDM) technique and the single carrier with cyclic prefix (SC-CP) scheme are very attractive solutions for wireless applications, being computationally efficient since equalization is performed in the frequency domain. The equalizer could not entirely handle significant mean. Doppler shift. This motivates the use of a phase error tracking loop that operates jointly with the frequency equalizer. This paper describes the effect of the mean phase error and the performance of the proportional equalizer coupled with a phase error tracking loop based on decision-directed method. Furthermore, simulation results show that we can reduce the computational toad of the tracking loop with minimal performance degradation.
Keywords
Doppler Shift; FDE; Mean Phase Error; OFDM; SC-CP;
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