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采用网络编码提高无线Mesh网络的吞吐量已成为目前研究的热点。文献[1]中,作者提出了一种在无线Mesh网络中采用网络编码的MAC层先验式混合协议,它采用异或编码的算法,这种算法在低丢包环境下性能较好,但不适合高丢包率环境。文章提出了一种适用于无线Mesh网络的线性网络编码方法,并采用复合解码策略,能确保在高丢包的环境中极大地提高网络的吞吐量。通过NS2仿真证明了这种方法的有效性。
The use of network coding to improve the throughput of wireless Mesh network has become a hot research field. In [1], the author proposes a MAC layer prior agreement hybrid protocol using network coding in wireless Mesh networks, which uses XOR coding algorithm, which performs well in low packet loss environment Not suitable for high packet loss rate environment. This paper proposes a linear network coding method suitable for wireless Mesh networks and adopts a composite decoding strategy to ensure that the network throughput is greatly improved in a case of high packet loss. The effectiveness of this method is proved by NS2 simulation.