利用纠删编码和辅助信道增加THz系统的传输距离
Increasing Transmission Distance in THz systems with Erasure Coding and Auxiliary Channels
摘要：
我们分析了系统线性网络编码（sRLNC）和低比特率的附加信道是否可以延长太赫兹传输距离。虽然已经提出了各种编码技术来减轻信道质量的问题，并且其他技术已经使用辅助信道来实现有效的THz传输系统配置，但是它们的组合是新的，并且具有显著改善传输质量的潜力。我们的特定解决方案被设计为通过低复杂度擦除码（sRLNC）来补充通用低复杂度FEC码，由此提出信道编码以在两个并行信道上同时发送原生和编码数据，所述两个并行信道包括一个主THz信道和一个具有更低比特率的辅助信道。我们从理论上表明，该系统可以提高吞吐量，支持更高的调制水平和传输数据在更长的距离与太赫兹通信。
英文摘要：
We analyze whether the THz transmission distance can be extended with systematic linear network coding (sRLNC) and a low-bitrate additional channel. While various coding techniques have been proposed to mitigate issues of channel quality, and other techniques have used auxiliary channels to enable an effective THz transmission system configuration, their combination is new, and carries potential for significant improvements in transmission quality. Our specific solution is designed to complementing a generic low complexity FEC code by a low complexity erasure code (sRLNC), whereby channel coding is proposed to simultaneously send the native and coded data over two parallel channels, including one main THz channel and one auxiliary channel with comparably lower bitrate. We show theoretically that the proposed system can improve throughput, support higher modulation levels and transfer data over the longer distances with THz communications.
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