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Differential multiuser detection using a novel genetic algorithm for ultra-wideband systems in lognormal fading channel

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Abstract

We employ a multiuser detection (MUD) method using a novel genetic algorithm (GA) based on complementary error function mutation (CEFM) and a differential algorithm (DA) for ultra-wideband (UWB) systems. The proposed MUD method is termed CEFM-GA DA for short. We describe the scheme of CEFM-GA DA, analyze its algorithm, and compare its computational complexity with other MUDs. Simulation results show that a significant performance gain can be achieved by employing the proposed CEFM-GA DA, compared with successive interference cancellation (SIC), parallel interference cancellation (PIC), conventional GA, and CEFM-GA without DA, for UWB systems in lognormal fading channel. Moreover, CEFM-GA DA not only reduces computational complexity relative to conventional GA and CEFM-GA without DA, but also improves bit error rate (BER) performance.

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Authors and Affiliations

  1. Department of Automation, Wuhan University, Wuhan, 430072, China

    Zheng-min Kong & Li Ding

  2. Wuhan National Laboratory for Optoelectronics, Huazhong University of Science & Technology, Wuhan, 430074, China

    Zheng-min Kong, Liang Zhong & Guang-xi Zhu

  3. Department of Electronics and Information Engineering, Huazhong University of Science & Technology, Wuhan, 430074, China

    Liang Zhong & Guang-xi Zhu

Authors
  1. Zheng-min Kong
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  2. Liang Zhong
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  3. Guang-xi Zhu
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  4. Li Ding
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Corresponding author

Correspondence to Guang-xi Zhu.

Additional information

Project supported by the National High-Tech R & D Program (863) of China (Nos. 2008AA01Z204 and 2009AA011202), the Key National Science & Technology Specific Projects (Nos. 2009ZX03003-003-2, 2009AA01Z205, 2009ZX03002-009, and 2010ZX03003-001-2), and the National Natural Science Foundation of China (No. 60802009)

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Kong, Zm., Zhong, L., Zhu, Gx. et al. Differential multiuser detection using a novel genetic algorithm for ultra-wideband systems in lognormal fading channel. J. Zhejiang Univ. - Sci. C 12, 754–765 (2011). https://doi.org/10.1631/jzus.C1000257

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  • DOI: https://doi.org/10.1631/jzus.C1000257

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