一种基于Turbo码的H-ARQ机制实现方法

IMPLEMENTATION OF TURBO CODE BASED H-ARQ MECHANISM

在3GPP和其他无线通信中广泛应用的H-ARQ(Hybrid-ARQ)机制需要前向纠错码,且Turbo码能解决无线通信中误码率和功率受限的问题,提出一种基于Turbo码的H-ARQ机制的设计和实现方法。介绍了Turbo码编解码原理和实现方案,给出了AWGN信道下的性能分析。实验表明,该方法有较低的误码率,能满足实际应用的要求。

Since H-ARQ mechanism widely used in 3GPP and other wireless communication systems badly needs FEC （ forward error cor- rection） code, and Turbo code has good performance in solving BER （bit error rate） and limited power control problems in wireless communication, a design and implementation approach for Turbo code based H-ARQ mechanism has been presented in this paper. Turbo code principle and implementation scheme were provided, and the performance of mechanism was analysed under AWGN channel model. As the result proved, this H-ARQ mechanism has particularly low BER, it can satisfy the practical application requirements.