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Bit-Error-Rate Analysis of Raptor Codes over Rician Fading Channels

机译:瑞典衰落渠道猛禽代码的误码率分析

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摘要

The bit-error-rate expressions of nonsystematic Raptor (NR) codes and systematic Raptor (SR) codes over Rician fading channels are first derived using a Gaussian approximation (GA) approach. These BER expressions provide a significant reduction in computational complexity for analyzing system performance when compared with simulation and discretized density evolution (DDE). As shown by the asymptotic analysis, the NR codes originally designed for binary erasure channels still have good performance on Rician fading channels but SR codes do not. Therefore, the degree distributions of SR codes are specifically optimized on Rician channels which are superior to the existing SR codes and comparable to NR codes.
机译:首先使用高斯近似(GA)方法,首先导出在RICian衰落信道上的非系统猛禽(NR)代码和系统猛禽(SR)代码的误差速率表达。 与仿真和离散密度进化(DDE)相比,这些BER表达在计算复杂性中提供了显着降低了计算复杂性,以分析系统性能。 如渐近分析所示,最初为二元擦除通道设计的NR代码仍然对RICian衰落通道具有良好的性能,但SR码不具有良好的性能。 因此,SR代码的程度分布在瑞典信道上专门优化,该瑞典信道优于现有的SR码并且与NR码相当。

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