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Volume 27 Issue 6
Jun.  2005
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Wu Qi-hui, Zhao Chun-ming. Combined Chip Equalization Interference Weighted Cancellation Receiver for HSDPA[J]. Journal of Electronics & Information Technology, 2005, 27(6): 851-856.
Citation: Wu Qi-hui, Zhao Chun-ming. Combined Chip Equalization Interference Weighted Cancellation Receiver for HSDPA[J]. Journal of Electronics & Information Technology, 2005, 27(6): 851-856.

Combined Chip Equalization Interference Weighted Cancellation Receiver for HSDPA

  • Received Date: 2004-05-21
  • Rev Recd Date: 2005-01-06
  • Publish Date: 2005-06-19
  • WCDMA needs to extend its downlink data rate to lOMbps or more because of the growing demand of the Internet and multimedia services. High Speed Downlink Packet Access (HSDPA) has been proposed to offer such high data rates in WCDMA technology within current 5MHz bandwidth. In order to enhance the performance of HSDPA, a novel receiver combined LMMSE chip equalizer and Interference Weighted Canceller (LMMSE-IWC) is presented. Theoretical analysis and computer simulations show that the performance of LMMSE-IWC is superior to conventional Rake, LMMSE chip equalizer.
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  • 3GPP TR25.848 V4.0.0, Physical layer aspects of UTRA high speed dowwnlink packet access.[2]R Love, et al.. High speed downlink packet access performance [A]. In Proceedings of IEEE Vehicular Technology Conference (VTC), Rhodes, Greece, May 2001, vol.3:2234 - 2238.[3]Hooli K.[J].Juntti M. Inter-path interference suppression in WCDMA systems with low spreading factors[A]. VTC99, IEEE [C], Amsterdam, the Netherlands.1999,:-[4]Prator O.[J].Unger C, Zoch A, Fettweis G P. Performance of adaptive chip equalization for the WCDMA downlink in fast changing environments[A]. IEEE 7th Int. Symp. on Spread-Spectrum Tech. Appl., Prague, Czech Republic.2002,:-[5]Hooli K, Latva-Aho M, Juntti M. Performance evaluation of adaptive chip-level channel equalizers in WCDMA downlink[A].Proc. IEEE International Conference on Communications 2001,Helsinki, Finland,2001, vol.6:1974-1979.[6]Komulainen P, Heikkila M J, Lilleberg J. Adaptive channel equalization and interference suppression for CDMA downlink[A]. IEEE International Symposium on SpreadSpectrum Techniques and Applications 2000, Newark, NJ, 2000,vol.2:363 - 367.[7]Krauss T, Zoltowski M, Leus G. Simple MMSE equalizers for CDMA downlink to restore chip sequence: comparison to zero-forcing and Rake[A]. In International Conference on Acoustics, Speech, and Signal Processing, June 9, 2000, Istanbul,Turkey, 2000:12865 - 2868.[8]Miyoshi K, Uehara T, Kasapidis M. Link adaptation method for high speed downlink packet access for W-CDMA[A]. In Proceedings of International Symposium on Wireless Personal Multimedia Communications (WPMC), Aalborg, Denmark,September 2001, vol.2. 455 - 460.
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