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 M...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.展开更多
基金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)the National Natural Science Foundation of China(No.60802009)
文摘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.
