The terahertz (THz) frequency band (0.3-10THz) has the advantage of large available bandwidth and is a candidate to satisfy the ever increasing mobile traffic in wireless communications. However, the THz channels are often absorbed by molecules in the atmosphere, which can decrease the signal quality resulting in high bit error rate of received data. In this paper, we study the usage of systematic random linear network coding (sRLNC) for error correction in generic THz systems with with 2N parallel channels, whereby N main high-bitrate channels are used in parallel with N auxiliary channels with lower bit rate. The idea behind this approach is to use coded low-bit rate channels to carry redundant information from high-bit rate channels, and thus compensate for errors in THz transmission. The analytical results evaluate and compare the different scenarios of the THz system in term of the amount of coding redundancy, a code rate, transmission rate of auxiliary channels, the number of THz channels, the modulation format and transmission distance as required system configurations for a fault tolerant THz transmission.

翻译：Thahertz (THZ) 频带 (0.3-10THz) 具有巨大的可用带宽优势,是满足无线通信中移动流量不断增长的候选条件,然而,Thaz 频道往往被大气中的分子吸收,从而降低信号质量,从而导致接收数据出现高位误差率。在本文中,我们研究使用系统随机线性网络编码(sRLNC)来校正具有2N平行频道的通用Thz系统中的错误,即N主要高位信道与N辅助频道同时使用,比特率较低。这种方法的理念是使用编码低位频频道从高位速频道传送多余的信息,从而弥补Thz传输中的错误。分析结果评估和比较了Thz系统在编码冗余量、代码率、辅助频道传输率、Thz频道数量、调制格式和传输距离方面的不同情景,这是对 Thz 错容忍传输所需的系统配置。