A polar-coded transmission (PCT) scheme with joint channel estimation and decoding is proposed for channels with unknown channel state information (CSI). The CSI is estimated via successive cancellation (SC) decoding and the constraints imposed by the frozen bits. SC list decoding with an outer code improves performance, including resolving a phase ambiguity when using quadrature phase-shift keying (QPSK) and Gray labeling. Simulations with 5G polar codes and QPSK show gains of up to $2$~dB at a frame error rate (FER) of $10^{-4}$ over pilot-assisted transmission for various non-coherent models. Moreover, PCT performs within a few tenths of a dB to a coherent receiver with perfect CSI. For Rayleigh block-fading channels, PCT outperforms an FER upper bound based on random coding and within one dB of a lower bound.

翻译：对频道状态信息不明的频道,建议采用极地编码传输(PCT)计划,并联合估计和解码。CSI是通过连续取消(SC)解码和冻结位数的限制来估计的。SC列表与外码解码可以提高性能,包括解决使用二次相位键(QPSK)和灰色标签时的阶段模糊性。以5G极代码和QPSK模拟5G极代码和QPSK显示在各种非趋同模型的试点辅助传输率(FER)为10 ⁇ -4 }美元的基础上,比试点辅助传输收益高达2美元。此外,PCT在DB的十分之一范围内,向具有完美CSI的一致接收器进行操作。对于Rayleigh区块设计通道来说,PCT在随机编码和较低约束的一条DB范围内,超过FER的上限。