A Pilot-Tone Based Channel Estimation Technique for Cooperative SFBCOFDM Systems 


Vol. 33,  No. 9, pp. 661-668, Sep.  2008


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  Abstract

In this paper, a channel estimation technique based on pilot tones is proposed for cooperative SFBC-OFDM systems with a STO(Symbol Timing Offset). In a cooperative SFBC-OFDM system, the STO between RS(Relay Station) and MS(Mobile Station) varies depending on the location of MS. Since the STO causes distortion in the form of phase rotation, a channel estimation technique based on linear interpolation with respect to phase and amplitude is proposed for the case of orthogonal pilot allocation. Also, a channel estimation technique is proposed by solving nonlinear equation for the case of pilot structure with orthogonal code. It is shown by computer simulation that the performance of channel estimation can be significantly improved when the proposed techniques are applied to cooperative SFBC-OFDM systems with STO.

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  Cite this article

[IEEE Style]

C. H. Park, Y. H. Ko, H. Lee, Y. S. Cho, "A Pilot-Tone Based Channel Estimation Technique for Cooperative SFBCOFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 9, pp. 661-668, 2008. DOI: .

[ACM Style]

Chang Hwan Park, Yo Han Ko, Heesoo Lee, and Yong Soo Cho. 2008. A Pilot-Tone Based Channel Estimation Technique for Cooperative SFBCOFDM Systems. The Journal of Korean Institute of Communications and Information Sciences, 33, 9, (2008), 661-668. DOI: .

[KICS Style]

Chang Hwan Park, Yo Han Ko, Heesoo Lee, Yong Soo Cho, "A Pilot-Tone Based Channel Estimation Technique for Cooperative SFBCOFDM Systems," The Journal of Korean Institute of Communications and Information Sciences, vol. 33, no. 9, pp. 661-668, 9. 2008.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880