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Front. Inform. Technol. Electron. Eng.  2011, Vol. 12 Issue (9): 754-765    DOI: 10.1631/jzus.C1000257
    
Differential multiuser detection using a novel genetic algorithm for ultra-wideband systems in lognormal fading channel
Zheng-min Kong1,2, Liang Zhong2,3, Guang-xi Zhu*,2,3, Li Ding1
1 Department of Automation, Wuhan University, Wuhan 430072, China 2 Wuhan National Laboratory for Optoelectronics, Huazhong University of Science & Technology, Wuhan 430074, China 3 Department of Electronics and Information Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
Differential multiuser detection using a novel genetic algorithm for ultra-wideband systems in lognormal fading channel
Zheng-min Kong1,2, Liang Zhong2,3, Guang-xi Zhu*,2,3, Li Ding1
1 Department of Automation, Wuhan University, Wuhan 430072, China 2 Wuhan National Laboratory for Optoelectronics, Huazhong University of Science & Technology, Wuhan 430074, China 3 Department of Electronics and Information Engineering, Huazhong University of Science & Technology, Wuhan 430074, China
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摘要： 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.
关键词： Multiuser detection (MUD);  Ultra-wideband (UWB);  Genetic algorithm (GA);  Complementary error function mutation (CEFM);  Differential algorithm (DA)    
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.
Key words: Multiuser detection (MUD)    Ultra-wideband (UWB)    Genetic algorithm (GA)    Complementary error function mutation (CEFM)    Differential algorithm (DA)
收稿日期: 2010-07-21 出版日期: 2011-09-09
CLC:  TN929.5  
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引用本文:

Zheng-min Kong, Liang Zhong, Guang-xi Zhu, Li Ding. Differential multiuser detection using a novel genetic algorithm for ultra-wideband systems in lognormal fading channel. Front. Inform. Technol. Electron. Eng., 2011, 12(9): 754-765.

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http://www.zjujournals.com/xueshu/fitee/CN/10.1631/jzus.C1000257    或    http://www.zjujournals.com/xueshu/fitee/CN/Y2011/V12/I9/754

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