无线Mesh网多路径混合包的传输方法

Method for Multipath Routing Based on Packet Mixing in Wireless Mesh Network

无线Mesh网络是目前无线网络中的研究热点,而Mesh网络中的一个重要瓶颈就是网络吞吐量受到限制.多路径传输可使无线网络获得更高的带宽达到提高吞吐量的目的,然而它也会造成能效降低,调度复杂;因此,提出一种吞吐量能有效提高的方法,将一种改进的新网络编码与多路径结合在一起,通过把数据包以段为单位进行编码,然后把编码后相互独立的多份数据沿多条路径进行传输,有效的降低数据包的重传,减少通信量.在提高吞吐量的同时,保证了数据传输的可靠性.模拟实验结果表明该方法有效.

Now,wireless mesh network becomes a research focus.A major barrier for the adoption of wireless mesh networks is severe limits on throughput.The design of multi-path in network can gain more bandwidth,so that the throughput is improved.However,it often waste energy,scheduling complex.To address this issue,this paper proposes an throughpout improvement method which employs an improved new network coding scheme based on multi-path routings.By encoding a group of data into independent new packets and transmitting them along multiple paths,this paper offsets the effect of reducing the data packets retransmitting and communications.With the throughpout improvement,the reliability of network is strengthened.Comprehensive simulations and results verify the validation of the theoretical results in the paper.