光纤通信网络子信道快速动态分配方法

Fast dynamic allocation method of subchannels in optical fiber communication network

针对传统光纤通信网络子信道快速动态分配方法中存在信道负载均衡性差、信号传输速度慢等问题,提出光纤通信网络子信道快速动态分配方法。基于光纤通信网络模型,计算光纤通信网络的干扰度,利用光纤通信网络子信道干扰示意图,定义光纤通信网络业务在转发过程中通过链路的实际容量,评估光纤通信网络的子信道状态,建立光纤通信网络子信道的多径信道模型,避免光纤通信网络子信道发生时变;通过计算光纤通信网络子信道的脉冲响应,得到扩频处理后输出比特序列,构建光纤通信网络子信道分配模型,通过确定光纤通信网络子信道分配的最优策略矩阵,得到光纤通信信号传输的效用函数,根据节点干扰和子信道质量对光纤通信网络传输质量的影响,实现光纤通信网络子信道的分配。实验结果表明,所提方法不仅可以缩短光纤通信信号的传输时间,还可降低光纤通信信号传输时数据的丢包率,提高了光纤通信网络子信道快速动态分配性能。

In order to solve the problems of poor balance of channel load and slow signal transmission speed in traditional fast dynamic allocation method of optical fiber communication network,a fast-dynamic allocation method of sub channel in optical fiber communication network is proposed.Based on the optical fiber communication network model,the interference degree of the optical fiber communication network is calculated.Using the interference diagram of the optical fiber communication network subchannel,the actual capacity of the optical fiber communication network service through the link in the forwarding process is defined,the sub channel state of the optical fiber communication network is evaluated,and the multi-path channel model of the optical fiber communication network sub channel is established to avoid the time-varying of the optical fiber communication network subchannel;By calculating the impulse response of the sub channel of the optical fiber communication network,the output bit sequence after spread spectrum processing is obtained,and the sub channel allocation model of the optical fiber communication network is constructed.By determining the optimal strategy matrix of the sub channel allocation of the optical fiber communication network,the utility function of the optical fiber communication signal transmission is obtained The sub channel allocation of optical fiber communication network.The experimental results show that the proposed method can not only shorten the transmission time of optical fiber communication signal,but also reduce the packet loss rate of data during the transmission of optical fiber communication signal,and improve the fast-dynamic allocation performance of optical fiber communication network subchannels.