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An Enhanced Iterative ICI Cancellation Method for Cooperative STBC-OFDM Systems  

Won, Kyung-Hoon (성균관대학교 정보통신공학부 통신시스템 연구실)
Park, Hwan-Min (성균관대학교 정보통신공학부 통신시스템 연구실)
Choi, Hyung-Jin (성균관대학교 정보통신공학부 통신시스템 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.34, no.9C, 2009 , pp. 896-905 More about this Journal
Abstract
In this paper, we propose an enhanced iterative ICI (Inter Carrier Interference) cancellation method for cooperative STBC-OFDM (Space Time Block Coded-Orthogonal Frequency Division Multiplexing) system. In cooperative STBC-OFDM system, ICI cancellation is necessary because ICI due to the independent local oscillators always exits. The conventional iterative ICI cancellation method has severe performance degradation due to the initial estimation error. Also the performance degradation increases as CFOs (Carrier Frequency Offsets) and modulation order increases. Therefore, in this paper, we propose an enhanced iterative ICI cancellation method which can reduce the initial estimation error by giving a priority to initial estimation and cancellation process. Through the complexity and performance comparisons, we verwey that the proposed method has better performance with approximately same complexity compared with the conventional method.
Keywords
Cooperative System; Frequency Offset; ICI Cancellation; STBC-OFDM;
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1 Z. Li, D. Qu, and G. Zhu, 'An equalization technique for distributed STBC-OFDM system with multiple carrier frequency offsets,' in Proc. IEEE WCNC, Vol. 2, pp. 839-843, Apr. 2006
2 3GPP TR 25.814 v7.1.0, '3rd generation partnership project; Technical specification group radio access network; Physical layer aspects for evolved Universal Terrestrial Radio Access (UTRA) (Release 7),' Tech. report, Sep. 2006
3 Y. J. Kim, H. Lee, H. K. Chung, and Y. S.Cho, 'An iterative decoding technique for cooperative STBC-OFDM systems with multiple frequency offsets,' in Proc. IEEE PIMRC, pp. 1-4, Sept. 2007
4 V. Tarokh, N. Seshadri, and A. R. Calderbank, 'Space-time codes for high data rate wireless communication: performance criterion and code construction,' IEEE Trans. Inf. Theory, Vol. 44, No. 2, pp. 744-765, Mar. 1998   DOI   ScienceOn
5 W. G. Jeon, K. H. Chang, and Y. S. Cho, 'An equalization technique for orthogonal frequencydivision multiplexing systems in time-varying multipath channels,' IEEE Trans. Commun., Vol. 49, pp. 27-32, Jan. 2001
6 J. Armstrong, 'Analysis of New and Existing Methods of Reducing Intercarrier Interference Due to Carrier Frequency Offset in OFDM,' IEEE Trans. Commun., Vol. 47, No. 3, pp. 365-369, Mar. 1999   DOI   ScienceOn
7 A. Sendonaris, E. Erkip, and B. Aazhang, 'User Cooperation Diversity-Part I: System Description,' IEEE Trans. Commun., Vol. 51, No. 11, pp. 1927-1937, Nov. 2003   DOI   ScienceOn
8 J. N. Laneman and G. W. Wornell, 'Distributed space time block coded protocols for exploiting cooperative diversity in wireless networks,' IEEE Trans. Inf. Theory, Vol. 49, pp. 2415- 2425, Oct. 2003   DOI   ScienceOn
9 S. M. Alamouti, 'A simple transmit diversity technique for wireless communications,' IEEE J. Sel. Areas Commun., Vol. 16, No. 8, pp. 1451- 1458, Oct. 1998   DOI   ScienceOn