As a subfield of network coding, PNC can effectively enhance the throughput of wireless networks by mapping superimposed signals at the receiver to other forms of user messages. Over the past 20 years, PNC has received significant research attention and has been widely studied in various communication scenarios, for example, TWRC, NOMA in 5G networks, random access networks, and so on. Later on, channel-coded PNC and related communication techniques were investigated to ensure network reliability, such as the design of channel code, low-complexity decoding, and cross-layer design. In this article, we briefly review the variants of channel-coded PNC-aided wireless communications with the aim of inspiring future research activities in this area. We also put forth open research problems along with a few selected research directions under PNC-aided frameworks.

中文翻译：

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物理层网络编码：一种有效的无线通信技术

作为网络编码的子字段，PNC可以通过将接收器处的叠加信号映射到其他形式的用户消息来有效地提高无线网络的吞吐量。在过去的20年中，PNC受到了广泛的研究关注，并在各种通信场景中得到了广泛的研究，例如TWRC，5G网络中的NOMA，随机接入网络等。随后，对信道编码的PNC和相关的通信技术进行了研究，以确保网络可靠性，例如信道编码的设计，低复杂度的解码和跨层设计。在本文中，我们简要回顾了信道编码的PNC辅助无线通信的变体，目的是激发该领域的未来研究活动。