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Frequency-Domain Equalization in Single-Carrier Transmission: Filter Bank Approach
EURASIP Journal on Advances in Signal Processing volume 2007, Article number: 010438 (2007)
Abstract
This paper investigates the use of complex-modulated oversampled filter banks (FBs) for frequency-domain equalization (FDE) in single-carrier systems. The key aspect is mildly frequency-selective subband processing instead of a simple complex gain factor per subband. Two alternative low-complexity linear equalizer structures with MSE criterion are considered for subband-wise equalization: a complex FIR filter structure and a cascade of a linear-phase FIR filter and an allpass filter. The simulation results indicate that in a broadband wireless channel the performance of the studied FB-FDE structures, with modest number of subbands, reaches or exceeds the performance of the widely used FFT-FDE system with cyclic prefix. Furthermore, FB-FDE can perform a significant part of the baseband channel selection filtering. It is thus observed that fractionally spaced processing provides significant performance benefit, with a similar complexity to the symbol-rate system, when the baseband filtering is included. In addition, FB-FDE effectively suppresses narrowband interference present in the signal band.
References
Clark MV: Adaptive frequency-domain equalization and diversity combining for broadband wireless communications. IEEE Journal on Selected Areas in Communications 1998,16(8):1385-1395. 10.1109/49.730448
Kadel G: Diversity and equalization in frequency domain - a robust and flexible receiver technology for broadband mobile communication systems. Proceedings of IEEE 47th Vehicular Technology Conference (VTC '97), May 1997, Phoenix, Ariz, USA 2: 894–898.
Falconer D, Ariyavisitakul SL, Benyamin-Seeyar A, Eidson B: Frequency domain equalization for single-carrier broadband wireless systems. IEEE Communications Magazine 2002,40(4):58-66. 10.1109/35.995852
Sari H, Karam G, Jeanclaude I: Transmission techniques for digital terrestrial TV broadcasting. IEEE Communications Magazine 1995,33(2):100-109. 10.1109/35.350382
Czylwik A: Comparison between adaptive OFDM and single carrier modulation with frequency domain equalization. Proceedings of IEEE 47th Vehicular Technology Conference (VTC '97), May 1997, Phoenix, Ariz, USA 2: 865–869.
Gusmão A, Dinis R, Esteves N: On frequency-domain equalization and diversity combining for broadband wireless communications. IEEE Transactions on Communications 2003,51(7):1029-1033. 10.1109/TCOMM.2003.814204
Falconer DD, Ariyavisitakul SL: Broadband wireless using single carrier and frequency domain equalization. Proceedings of the 5th International Symposium on Wireless Personal Multimedia Communications (WPMC '02), October 2002, Honolulu, Hawaii, USA 1: 27–36.
Martoyo L, Weiss T, Capar F, Jondral FK: Low complexity CDMA downlink receiver based on frequency domain equalization. Proceedings of IEEE 58th Vehicular Technology Conference (VTC '03), October 2003, Orlando, Fla, USA 2: 987–991.
Schniter P, Liu H: Iterative frequency-domain equalization for single-carrier systems in doubly-dispersive channels. Proceedings of the 38th Asilomar Conference on Signals, Systems, and Computers, November 2004, Pacific Grove, Calif, USA 1: 667–671.
Alhava J, Renfors M: Adaptive sine-modulated/cosine-modulated filter bank equalizer for transmultiplexers. Proceedings of the European Conference on Circuit Theory and Design (ECCTD '01), August 2001, Espoo, Finland 337–340.
Alhava J, Viholainen A, Renfors M: Efficient implementation of complex exponentially-modulated filter banks. Proceedings of IEEE International Symposium on Circuits and Systems, May 2003, Bangkok, Thailand 4: 157–160.
Viholainen A, Alhava J, Renfors M: Efficient implementation of complex modulated filter banks using cosine and sine modulated filter banks. EURASIP Journal on Applied Signal Processing 2006, 2006: 10 pages.
Viholainen A, Alhava J, Renfors M: Efficient implementation of 2x oversampled exponentially modulated filter banks. IEEE Transactions on Circuits and Systems II 2006, 53: 1138–1142.
Proakis JG: Digital Communications. 4th edition. McGraw-Hill, New York, NY, USA; 2001.
Ihalainen T, Hidalgo Stitz T, Rinne M, Renfors M: Channel equalization in filter bank based multicarrier modulation for wireless communications. to appear in EURASIP Journal of Applied Signal Processing
Yang Y, Ihalainen T, Renfors M: Filter bank based frequency domain equalizer in single carrier modulation. Proceedings of the 14th IST Mobile and Wireless Communications Summit, June 2005, Dresden, Germany
Benvenuto N, Tomasin S: On the comparison between OFDM and single carrier modulation with a DFE using a frequency-domain feedforward filter. IEEE Transactions on Communications 2002,50(6):947-955. 10.1109/TCOMM.2002.1010614
Treichler JR, Fijalkow I, Johnson CR Jr.: Fractionally spaced equalizers: how long should they really be? IEEE Signal Processing Magazine 1996,13(3):65-81. 10.1109/79.489269
Duhamel P: Implementation of split-radix FFT algorithms for complex, real, and real-symmetric data. IEEE Transactions on Acoustics, Speech, and Signal Processing 1986,34(2):285-295. 10.1109/TASSP.1986.1164811
Malvar HS: Signal Processing with Lapped Transforms. Artech House, Norwood, Mass, USA; 1992.
Viholainen A, Hidalgo Stitz T, Alhava J, Ihalainen T, Renfors M: Complex modulated critically sampled filter banks based on cosine and sine modulation. Proceedings of IEEE International Symposium on Circuits and Systems, May 2002, Scottsdale, Ariz, USA 1: 833–836.
Petraglia MR, Alves RG, Diniz PSR: New structures for adaptive filtering in subbands with critical sampling. IEEE Transactions on Signal Processing 2000,48(12):3316-3327. 10.1109/78.886995
Viholainen A, Ihalainen T, Hidalgo Stitz T, Yang Y, Renfors M: Flexible filter bank dimensioning for multicarrier modulation and frequency domain equalization. Proceedings of IEEE Asia Pacific Conference on Circuits and Systems, December 2006, Singapore 451–454.
Karp T, Fliege NJ: Modified DFT filter banks with perfect reconstruction. IEEE Transactions on Circuits and Systems II 1999,46(11):1404-1414. 10.1109/82.803480
Hentschel T, Fettweis G: Software Radio Receivers. Kluwer Academic, Boston, Mass, USA; 1999.
Kay S: Fundamentals of Statistical Signal Processing: Estimation Theory. Prentice-Hall, Englewood Cliffs, NJ, USA; 1993.
Peterson WW, Weldon EJ Jr.: Error-Correcting Codes. 2nd edition. MIT Press, Cambridge, Mass, USA; 1972.
Sorensen TB, Mogensen PE, Frederiksen F: Extension of the ITU channel models for wideband OFDM systems. Proceedings of IEEE 62nd Vehicular Technology Conference (VTC '05), September 2005, Dallas, Tex, USA 1: 392–396.
Gallager RG: Low-Density Parity-Check Codes. MIT Press, Cambridge, Mass, USA; 1963.
Hara S, Matsuda T, Ishikura K, Morinaga N: Co-existence problem of TDMA and DS-CDMA systems-application of complex multirate filter bank. Proceedings of IEEE Global Telecommunications Conference (GLOBECOM '96), November 1996, London, UK 2: 1281–1285.
Medley MJ, Saulnier GJ, Das PK: Narrow-band interference excision in spread spectrum systems using lapped transforms. IEEE Transactions on Communications 1997,45(11):1444-1455. 10.1109/26.649769
Hidalgo Stitz T, Renfors M: Filter-bank-based narrowband interference detection and suppression in spread spectrum systems. EURASIP Journal on Applied Signal Processing 2004,2004(8):1163-1176. 10.1155/S1110865704312102
Yang Y, Hidalgo Stitz T, Rinne M, Renfors M: Mitigation of narrowband interference in single carrier transmission with filter bank equalization. Proceedings of IEEE Asia Pacific Conference on Circuits and Systems, December 2006, Singapore 749–752.
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Yang, Y., Ihalainen, T., Rinne, M. et al. Frequency-Domain Equalization in Single-Carrier Transmission: Filter Bank Approach. EURASIP J. Adv. Signal Process. 2007, 010438 (2007). https://doi.org/10.1155/2007/10438
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DOI: https://doi.org/10.1155/2007/10438