Efficient Symbol Detection Algorithm for Space-Frequency OFDM Transmit Diversity Scheme 


Vol. 30,  No. 4, pp. 283-289, Apr.  2005


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  Abstract

In this paper, we propose two efficient symbol detection algorithms for space-frequency OFDM (SF-OFDM) transmit diversity scheme. When the number of sub-carriers in SF-OFDM scheme is small, the interference between adjacent sub-carriers may be generated. The proposed algorithms eliminate this interference in a parallel or sequential manner and achieve a considerable performance improvement over the conventional detection algorithm. The bit error rate (BER) performance of the proposed detection algorithms is evaluated by the simulation. In the case of 2 transmit and 2 receive antennas, at BER=10-4 the proposed algorithms achieve the gain improvement of about 3 dB. The symbol detectors with the proposed algorithms are designed in a hardware description language and synthesized to gate-level circuits with the 0.18um 1.8V CMOS standard cell library. With the division-free architecture, the proposed SF-OFDM-PIC and SF-OFDM-SIC symbol detectors can be implemented using 140K and 129K logic gates, respectively.

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  Cite this article

[IEEE Style]

Y. h. Jung and J. s. Kim, "Efficient Symbol Detection Algorithm for Space-Frequency OFDM Transmit Diversity Scheme," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 283-289, 2005. DOI: .

[ACM Style]

Yun ho Jung and Jae seok Kim. 2005. Efficient Symbol Detection Algorithm for Space-Frequency OFDM Transmit Diversity Scheme. The Journal of Korean Institute of Communications and Information Sciences, 30, 4, (2005), 283-289. DOI: .

[KICS Style]

Yun ho Jung and Jae seok Kim, "Efficient Symbol Detection Algorithm for Space-Frequency OFDM Transmit Diversity Scheme," The Journal of Korean Institute of Communications and Information Sciences, vol. 30, no. 4, pp. 283-289, 4. 2005.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880