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Bandwidth-Efficient OFDM Transmission with Iterative Cyclic Prefix Reconstruction  

Lim, Jong-Bu (Department of Electronic and Electrical Engineering, Pohang University of Science and Technology)
Kim, Eung-Sun (Samsung Advanced Institute of Technology (SAIT))
Park, Cheol-Jin (HUCONEX, Co. Ltd.)
Won, Hui-Chul (Department of Computer and Information Technology, Daegu University)
Kim, Ki-Ho (Samsung Electronics Co.)
Im, Gi-Hong (Department of Electronic and Electrical Engineering, Pohang University of Science and Technology)
Publication Information
Journal of Communications and Networks / v.10, no.3, 2008 , pp. 239-252 More about this Journal
Abstract
For orthogonal frequency division multiplexing (OFDM), cyclic prefix (CP) should be longer than the length of channel impulse response, resulting in a loss of bandwidth efficiency. In this paper, we describe a new technique to restore the cyclicity of the received signal when the CP is not sufficient for OFDM systems. The proposed technique efficiently restores the cyclicity of the current received symbol by adding the weighted next received symbol to the current received symbol. Iterative CP reconstruction (CPR) procedure, based on the residual intersymbol interference cancellation (RISIC) algorithm, is analyzed and compared to the RISIC. In addition, we apply the CPR method to Alamouti space-time block coded (STBC) OFDM system. It is shown that in the STBC OFDM, tail cancellation as well as cyclic reconstruction of the CPR procedure should be repeated. The computational complexities of the RISIC, the proposed CPR, the RISIC with STBC, and the proposed CPR with STBC are analyzed and their performances are evaluated in multipath fading environments. We also propose an iterative channel estimation (CE) method for OFDM with insufficient CP. Further, we discuss the CE method for the STBC OFDM system with the CPR. It is shown that the CPR technique with the proposed CE method minimizes the loss of bandwidth efficiency due to the use of CP, without sacrificing the diversity gain of the STBC OFDM system.
Keywords
Channel estimation (CE); cyclic prefix (CP) reconstruction; intercarrier interference (ICI); interference cancellation; intersymbol interference (ISI); orthogonal frequency division multiplexing (OFDM); space-time block code (STBC);
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1 IEEE 802.11a-1999, "Part 11: Wireless LAN medium access control (MAC) and physical layer (PHY) specifications: High-speed physical layer in the 5 GHz band," Sept. 1999.
2 Z. Wang and G. B. Giannakis, "Wireless multicarrier communictions," IEEE Signal Process. Mag., vol. 17, no. 3, pp. 29-48, May 2000   DOI   ScienceOn
3 G.-H. Im and J. J. Werner, "Bandwidth-efficient digital transmission over unshielded twisted pair wiring," IEEE J. Sel. Areas Commun., vol. 13, no. 9, pp. 1643-1655, Dec. 1995.   DOI   ScienceOn
4 Samsung 4G Forum, Migration Paths Towards 4G Networks, Aug. 22-23, 2004.
5 C. J. Park and G.-H. Im, "Efficient DMT/OFDMtransmission with insufficient cyclic prefix," IEEE Commun. Lett., vol. 8, no. 9, pp. 576-578, Sept. 2004.   DOI   ScienceOn
6 H. C. Won and G.-H. Im, "Iterative cyclic prefix reconstruction and channel estimation for space-time block coded orthogonal frequency division multiplexing," in Proc. IEEE ICC, June 2005.
7 J. M. Cioffi and A. C. Bingham, "A data-driven multitone echo canceller," IEEE Trans. Commun., vol. 42, no. 10, pp. 2853-2869, Oct. 1994.   DOI   ScienceOn
8 G.-H. Im, K. M. Kang, and C. J. Park, "FEXT cancellation for twisted-pair transmission," IEEE J. Sel. Areas Commun., vol. 20, no. 5, pp. 959-973, June 2002.   DOI   ScienceOn
9 S. 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
10 P. Schniter and H. Liu, "Iterative frequency-domain equalization for single-carrier systems in doubly-dispersive channels," in Proc. Asilomar Conf. Signals, Syst., and Comput., vol. 1, Nov. 2004, pp. 667-671.
11 AI-Dhahir and J. M. Cioffi. "Optimum finite-length equalization for multicarrier transceivers," IEEE Trans Commun., vol. 44, no. 1, pp. 56-64. Jan. 1996.   DOI   ScienceOn
12 T. K. Moon, "The expectation-maximization algorithm," IEEE Signal Process. Mag., vol. 13, no. 6, pp. 47-60, Nov. 1996.   DOI   ScienceOn
13 R. Gitlin, J. Hayes, and S. Weinstein, Data Communications Principles. Plenum Press, 1992.
14 Y. Li, L. Cimini, Jr., and N. Sollenberger, "Robust channel estimation for OFDM systems with rapid dispersive fading channels," IEEE Trans. Commun., vol. 46, no. 7, pp. 902-915, July 1998.   DOI   ScienceOn
15 T. Starr, J. M. Cioffi, and P. J. Silverman, Understanding Digital Subscriber Line Technology. Prentice Hall, 1999.
16 K.W. Cheong and J.M. Cioffi, "Precoder for DMT with insufficient cyclic prefix," in Proc. IEEE ICC, June 1998.
17 S. Trautmann and N. J. Fliege, "Perfect equalization for DMT systems without guard interval," IEEE J. Sel. Areas Commun., vol. 20, no. 5, pp. 987-996, June 2002.   DOI   ScienceOn
18 C. J. Park and G.-H. Im, "Improved cyclic prefix reconstruction and its application to space-time block coded othogonal frequency division multiplexing transmission," in Proc. IEEE ICC, June 2005.
19 P. J. W. Melsa, R. C. Younce, and C. E. Rohrs, "Impulse response shortening for discrete multitone transceivers," IEEE Trans. Commun., vol. 44, no. 12, pp. 1662-1672, Dec. 1996.   DOI   ScienceOn
20 J. J. Beek, O. Edfors, and M. Sandell, "On channel estimation in OFDM systems," in Proc. IEEE VTC-fall, July 1995, pp. 815-819.
21 M. Toeltsch and A. F. Molisch, "Equalization of OFDM-systems by interference cancellation techniques," in Proc. IEEE ICC, vol. 6, June 2001, pp. 1950-1954.
22 Y. S. Kim, B. J. Jeong, J. H. Chung, C. S. Hwang, J. S. Ryu, K. H. Kim, and Y. K. Kim, "Beyond 3G: Vision, requirements, and enabling technologies," IEEE Commun. Mag., vol. 41, no. 3, pp. 120-124, Mar. 2003.
23 A. Oppenheim and R. Schafer, Discrete-Time Signal Processing. Prentice- Hall, 1989.
24 R. K. Martin, M. Ding, B. L. Evans, and C. R. Johnson, "Infinite length results and design implications for time-domain equalizers," IEEE Trans. Signal Process., vol. 52, no. 1, pp. 297-301, Jan. 2004.   DOI   ScienceOn
25 G. L. Stüber, J. R. Barry, S. W. McLaughlin, Y. Li, M. A. Ingram, and T. G. Pratt, "Broadband MIMO-OFDM wireless communications," Proc. IEEE, vol. 92, no. 2, pp. 271-294, Feb. 2004.   DOI   ScienceOn
26 K. Van Acker, G. Leus, M. Moonen, O. Van de Wiel, and T. Pollet, "Per tone equalization for DMT-based systems," IEEE Trans. Commun., vol. 49, no. 1, pp. 109-119, Jan. 2001.   DOI   ScienceOn
27 D. Kim and G. L. Stüber, "Residual ISI cancellation for OFDM with application to HDTV broadcasting," IEEE J. Sel. Areas Commun., vol. 16, no. 8, pp. 1590-1599, Oct. 1998.   DOI   ScienceOn
28 G. Al-Rawi, T. Al-Naffouri, A. Bahai, and J. M. Cioffi, "Exploiting errorcontrol coding and cyclic-prefix in channel estimation for coded OFDM systems," IEEE Commun. Lett., vol. 7, no. 7, pp. 388-390, July 2003.   DOI   ScienceOn
29 G.-H. Im and K. M. Kang, "Performance of a hybrid decision feedback equalizer structure for CAP-based DSL systems," IEEE Trans. Signal Process., vol. 49, no.8, pp. 1768-1785, Aug. 2001.   DOI   ScienceOn
30 G.-H. Im, C. K. Un, and J. C. Lee, "Performance of a class of adaptive data-driven echo cancellers," IEEE Trans. Commun., vol. 37, no. 12, pp. 1254-1263, Dec. 1989.   DOI   ScienceOn
31 COST 207 TD(86)51-REV 3 (WG1), "Proposal on channel transfer functions to be used in GSM tests late 1986," Sept. 1986.
32 G.-H. Im, D. D. Harman, G. Huang, A. V. Mandzik, M.-H. Nguyen, and J. J.Werner, "51.84 Mb/s 16-CAP ATMLAN standard," IEEE J. Sel. Areas Commun., vol. 13, no. 4, pp. 620-632, May 1995.   DOI   ScienceOn