Abstract: This paper introduces an overview of the applications of network coding in wireless relaying networks. Two typical scenarios of wireless network coding are two-way relay networks and multicast retransmission networks. Some key problems of network coding in wireless relaying networks are as follows: (1)Design implementations of wireless network coding; (2)Analyze the capacity of network coding and the corresponding transmission schemes in actual network environments; (3)Investigate how to separate the required signal from the mixed signal for physical layer network coding. Future work on network coding is also summarized.

Key words: network coding, wireless relay networks, throughput

摘要： 介绍网络编码在无线中继网络中应用的研究进展，指出其2个典型应用场景是双向对传网络和组播重传网络。阐述研究中需要解决的关键问题：(1)设计具体的实现协议；(2)在实际网络条件下，采用网络编码后的网络容量及可达该容量的传输策略；(3)针对物理层网络编码，从混合信号中分离出需要的信号。此外，展望该应用的发展趋势。

关键词: 网络编码, 无线中继网络, 吞吐量

CLC Number: 

• TP393