论文部分内容阅读
围绕网络编码这一热点,详细分析讨论网络编码的原理、应用在有线和无线中的网络编码方案以及在无线通信中的物理层网络编码,并且分析了其性能。得出物理层网络编码技术是可以逼近无线网络传输容量极限的有效方法。对比传统的中继方式,由于物理层网络编码的应用信源节点可以同时发送信息到中继节点,使得传递信息的时隙从原来的4时隙减为2时隙,从而将系统的吞吐量提高了一倍。
Focusing on the hotspot of network coding, this paper analyzes and discusses the principle of network coding in detail, the network coding scheme used in wired and wireless and the physical layer network coding in wireless communication, and analyzes its performance. It is concluded that the physical layer network coding technique is an effective method to approach the limit of wireless network transmission capacity. Compared with the traditional relay mode, since the application source node of the physical layer network coding can send information to the relay node at the same time, the time slot for transmitting information is reduced from the original 4 time slots to 2 time slots, so that the system throughput Doubled.