Performance Evaluation of Space-Time Codes and Channel Estimation in OFDM System for Wireless LANs 


Vol. 27,  No. 8, pp. 760-770, Aug.  2002


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  Abstract

Transmit diversity is an efficient diversity technique to improve performance and spectrum efficiency in wireless communication. Coding scheme designed for the transmit diversity is called space-time coding. In this paper, we propose a training structure to apply the transmit diversity to improve the performance of IEEE802.lla OFDM systems. Based on this training structure, we propose a channel estimation scheme using curve fitting. Also we compare and evaluate the performance of space-time codes. The performance of both diversity using space-time codes and channel estimation scheme is investigated by computer simulation in quasi-static 2-ray rayleigh fading environment.

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  Cite this article

[IEEE Style]

S. M. Lee and H. J. Choi, "Performance Evaluation of Space-Time Codes and Channel Estimation in OFDM System for Wireless LANs," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 8, pp. 760-770, 2002. DOI: .

[ACM Style]

Sang Mun Lee and Hyung Jin Choi. 2002. Performance Evaluation of Space-Time Codes and Channel Estimation in OFDM System for Wireless LANs. The Journal of Korean Institute of Communications and Information Sciences, 27, 8, (2002), 760-770. DOI: .

[KICS Style]

Sang Mun Lee and Hyung Jin Choi, "Performance Evaluation of Space-Time Codes and Channel Estimation in OFDM System for Wireless LANs," The Journal of Korean Institute of Communications and Information Sciences, vol. 27, no. 8, pp. 760-770, 8. 2002.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880