基于AF中继的物理层网络编码信道容量分析

摘要

Combined the Physical layer Network Coding with the wireless cooperative relay technology, this paper investigates the channel capacity of three-node two-way relay system, and verifies the theoretical results by mean of simulation. The simulation re-sults proves that the channel capacity can be largely improved by the application of Physical layer Network Coding. Meanwhile, the channel capacity of two-way relay system which adopts the technique of Physical layer Network Coding will be influenced by the SNR of the system and the position of the relay.%将物理层网络编码(Physical layer Network Coding,PNC)技术和无线协作中继技术相结合,研究不同中继传输方案下三节点双向中继系统的信道容量,并通过仿真对理论分析结果进行验证.仿真结果表明,采用物理层网络编码技术可以在很大程度上提高双向中继系统的信道容量.同时,采用物理层网络编码的双向中继系统的信道容量还会受到系统信噪比和中继位置的影响.