基于SPW的LDPC码的仿真实现  

Simulation Implementation of LDPC Codes Based on Signal Processing Worksystem

作　　者：徐位凯[1] 王琳[1] 

机构地区：[1]厦门大学通信工程系,厦门361005

出　　处：《系统仿真学报》2005年第10期2467-2469,2475,共4页Journal of System Simulation

基　　金：国家"863"计划项目(2001AA123061);国家自然科学基金资助项目(60272005);NCET-04-0601

摘　　要：在通信系统设计中,采用先进的仿真工具进行系统建模和仿真,已经成为复杂系统设计必不可少的环节。SPW是一个先进的通信系统建模、仿真工具,它具有非常灵活的自定义模块能力。LDPC码是近来出现的一种高效纠错编码,具有比turbo码更强的纠错能力。在介绍了LDPC码原理的基础上,将LDPC码封装为自定义模块,并在SPW环境中仿真了LDPC在AWGN信道和Rayleigh衰落信道下的性能,得到了预期的结果。In the communication systems designing, it has been an absolutely necessary stage to use advanced simulation tools for modeling and simulating. SPW is an advanced tool for modeling and simulating communication systems, and it has very flexible capacity for user-defined token. LDPC code is an effective error-correct code for these years. Its performance is better than that of turbo codes. User-defined token of LDPC code was designed on the base of introducing the principle of LDPC code, and the performances of LDPC code on AWGN and Rayleigh fading channel in SPW environment were simulated, respectively. The simulation results are expectant.

关 键 词：SPW(Signal Processing Worksystem) LDPC码 自定义模块 系统仿真 信道编码 误比特率 

分 类 号：TN911.22[电子电信—通信与信息系统]