Blind adaptive equalizer based on pdf matching for Rayleigh time-varying channels

Adel Daas, Stephan Weiss

Research output: Contribution to conferencePaper

2 Citations (Scopus)

Abstract

In this paper, we propose a new adaptive technique for blind equalisation for fast time-varying channels. The proposed approach is based on fitting the probability density function (pdf) of the equalizer output to the desired pdf of the corresponding symbol alphabet. The underlying pdf at the equalizer output is estimated by means of the Parzen Window method. The cost function of the proposed technique can be measured by a stochastic gradient descent approach. The performance of the proposed adaptation strategy is assessed by a number of simulations, and benchmarked against CMA under QPSK modulation in a doubly-dispersive environment.

Conference

Conference44th Asilomar Conference on Signal, Systems, and Computers
CountryUnited States
CityPacific Grove, CA
Period7/11/1010/11/10

Fingerprint

Equalizers
Probability density function
Blind equalization
Quadrature phase shift keying
Cost functions
Modulation

Keywords

  • multiaccess communication
  • time-varying channels
  • adaptive equalizers
  • blind equalizers
  • cost function
  • kernel

Cite this

Daas, A., & Weiss, S. (2010). Blind adaptive equalizer based on pdf matching for Rayleigh time-varying channels. 456-460. Paper presented at 44th Asilomar Conference on Signal, Systems, and Computers, Pacific Grove, CA, United States. https://doi.org/10.1109/ACSSC.2010.5757600
Daas, Adel ; Weiss, Stephan. / Blind adaptive equalizer based on pdf matching for Rayleigh time-varying channels. Paper presented at 44th Asilomar Conference on Signal, Systems, and Computers, Pacific Grove, CA, United States.5 p.
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abstract = "In this paper, we propose a new adaptive technique for blind equalisation for fast time-varying channels. The proposed approach is based on fitting the probability density function (pdf) of the equalizer output to the desired pdf of the corresponding symbol alphabet. The underlying pdf at the equalizer output is estimated by means of the Parzen Window method. The cost function of the proposed technique can be measured by a stochastic gradient descent approach. The performance of the proposed adaptation strategy is assessed by a number of simulations, and benchmarked against CMA under QPSK modulation in a doubly-dispersive environment.",
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author = "Adel Daas and Stephan Weiss",
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note = "44th Asilomar Conference on Signal, Systems, and Computers ; Conference date: 07-11-2010 Through 10-11-2010",

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Daas, A & Weiss, S 2010, 'Blind adaptive equalizer based on pdf matching for Rayleigh time-varying channels' Paper presented at 44th Asilomar Conference on Signal, Systems, and Computers, Pacific Grove, CA, United States, 7/11/10 - 10/11/10, pp. 456-460. https://doi.org/10.1109/ACSSC.2010.5757600

Blind adaptive equalizer based on pdf matching for Rayleigh time-varying channels. / Daas, Adel; Weiss, Stephan.

2010. 456-460 Paper presented at 44th Asilomar Conference on Signal, Systems, and Computers, Pacific Grove, CA, United States.

Research output: Contribution to conferencePaper

TY - CONF

T1 - Blind adaptive equalizer based on pdf matching for Rayleigh time-varying channels

AU - Daas, Adel

AU - Weiss, Stephan

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N2 - In this paper, we propose a new adaptive technique for blind equalisation for fast time-varying channels. The proposed approach is based on fitting the probability density function (pdf) of the equalizer output to the desired pdf of the corresponding symbol alphabet. The underlying pdf at the equalizer output is estimated by means of the Parzen Window method. The cost function of the proposed technique can be measured by a stochastic gradient descent approach. The performance of the proposed adaptation strategy is assessed by a number of simulations, and benchmarked against CMA under QPSK modulation in a doubly-dispersive environment.

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KW - multiaccess communication

KW - time-varying channels

KW - adaptive equalizers

KW - blind equalizers

KW - cost function

KW - kernel

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Daas A, Weiss S. Blind adaptive equalizer based on pdf matching for Rayleigh time-varying channels. 2010. Paper presented at 44th Asilomar Conference on Signal, Systems, and Computers, Pacific Grove, CA, United States. https://doi.org/10.1109/ACSSC.2010.5757600