标题： 相干和差分相干调制方案在对数正态衰落信道中的高SNR误码率比较 显示英文标题

标题： High SNR BER Comparison of Coherent and Differentially Coherent Modulation Schemes in Lognormal Fading Channels

摘要： 使用辅助随机变量技术，我们证明了二进制差分相移键控和二进制相移键控在对数正态衰落信道中的渐近比特错误率性能相同。 我们还表明，在高信噪比条件下，差分四进制相移键控在对数正态衰落信道中比四进制相移键控差2.32 dB。 显示英文摘要

摘要： Using an auxiliary random variable technique, we prove that binary differential phase-shift keying and binary phase-shift keying have the same asymptotic bit-error rate performance in lognormal fading channels. We also show that differential quaternary phase-shift keying is exactly 2.32 dB worse than quaternary phase-shift keying over the lognormal fading channels in high signal-to-noise ratio regimes.