CAJ | 학술논문

提出一种可应用于BICM-ID系统的新的停止判决算法，即新LLR停止准则，并将该准则应用于不同的调制、映射及译码方案中，进行大量的Matlab仿真，并对仿真结果进行分析研究。仿真结果发现，应用了新LLR停止准则的各种调制、映射及译码方案的误比特率性能同应用固定迭代次数的fixed方案相比几乎没有性能损失，但是却大大地减少了译码迭代次数，这就减小了BICM-ID系统接收端的译码复杂度，节省了译码时间，降低了译码功耗。
제출일충가응용우BICM-ID계통적신적정지판결산법，즉신LLR정지준칙，병장해준칙응용우불동적조제、영사급역마방안중，진행대량적Matlab방진，병대방진결과진행분석연구。방진결과발현，응용료신LLR정지준칙적각충조제、영사급역마방안적오비특솔성능동응용고정질대차수적fixed방안상비궤호몰유성능손실，단시각대대지감소료역마질대차수，저취감소료BICM-ID계통접수단적역마복잡도，절성료역마시간，강저료역마공모。
This paper proposes a new stopping judgment algorithm for BICM -ID system, which is named the new LLR stopping criterion. Then, it makes a research with substantial Matlab simulations on different modulations, mappings and decoding algorithms that using the new devised LLR stopping criterion. We can find from the simulation results that there is approximately no BER （ bit - error - rate） perform- ance degradation using LLR stopping criterion compared with the scheme that using fixed iteration num- bers. However, the application of new LLR stopping criterion has greatly reduced the iteration numbers, which leads to the decreased decoding complexity and decreased time delay, and at the same time re- duces the power consumption of the receiver.