CAJ | 학술논문

无线网络中，节点发送的数据分组传输失败后，执行重传机制。传统的重传机制ARQ由于在一次重传中只能发送一个丢失的数据分组，因此传输效率比较低。利用网络编码技术和AQR重传机制，我们可以在重传中使用网络编码，广播发送由多个丢失数据分组编码得到的编码分组，从而提高重传效率。本文中我们提出一种将网络编码应用于多个发送方多个接收方(MSMR)无线网络中的算法RMBNC。理论推导和仿真分析验证了我们提出的算法的有效性。
무선망락중，절점발송적수거분조전수실패후，집행중전궤제。전통적중전궤제ARQ유우재일차중전중지능발송일개주실적수거분조，인차전수효솔비교저。이용망락편마기술화AQR중전궤제，아문가이재중전중사용망락편마，엄파발송유다개주실수거분조편마득도적편마분조，종이제고중전효솔。본문중아문제출일충장망락편마응용우다개발송방다개접수방(MSMR)무선망락중적산법RMBNC。이론추도화방진분석험증료아문제출적산법적유효성。
In wireless network , the sender performs retransmission mechanism when data packet is not correctly received by the receiver. The transmission efifciency of traditional ARQ retransmission mechanisms is relatively low because only one lost packet is sent in the retransmission procedure. By using of network coding and AQR retransmission mechanism, a sender can broadcast an encode packet which is combined by numbers of lost packet in the retransmission, thus the efficiency of retransmission can improve effectively. In this paper, we propose an algorithms RMBNC which can be applied to multiple senders multiple recipients in a wireless network, theoretical analysis and simulation verify the effectiveness of the proposed algorithm.