Symbol Error Rate Calculation for Alamouti Space Time Coded OFDM in Direct Conversion Receivers

In this paper we present an analytical approach to evaluate the M-QAM symbol error rate (SER) of Alamouti space time coded OFDM direct conversion receivers subject to carrier frequency offset (CFO), channel estimation errors, outdated channel state information and flat receiver I/Q imbalance in Rayl...

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Bibliographic Details
Published inIEEE GLOBECOM 2007 - IEEE Global Telecommunications Conference pp. 3989 - 3994
Main Authors Krondorf, M., Fettweis, G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.11.2007
Subjects
Channel estimation
Channel state information
Error analysis
Fading
Frequency conversion
Frequency estimation
Information analysis
OFDM
Signal analysis
Space time codes
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Summary:In this paper we present an analytical approach to evaluate the M-QAM symbol error rate (SER) of Alamouti space time coded OFDM direct conversion receivers subject to carrier frequency offset (CFO), channel estimation errors, outdated channel state information and flat receiver I/Q imbalance in Rayleigh time and frequency selective fading channels. Based on correct modeling of the correlation between channel estimates and received signals with carrier frequency offset and receiver I/Q imbalance, the SER can be numerically evaluated by averaging symbol error rates on different subcarriers using an analytical expression of double integrals. The results illustrate that the analysis can approximate the simulative performance very accurately if the power delay profile of fading channels, the receiver I/Q imbalance parameters and carrier frequency offset are known.
ISBN:1424410428
9781424410422
ISSN:1930-529X
DOI:10.1109/GLOCOM.2007.758