入侵干扰约束下网络动态多信道数据传输方法

Network Dynamic Multi-Channel Data Transmission Method under Intrusion Interference Constraint

针对常用数据传输方法容易忽略传输整体能耗与节点负载问题,提出一种入侵干扰约束下网络动态多信道数据传输方法。创建可以描述入侵干扰约束状态的矩阵不等式,通过替换矩阵中的逆矩阵,将求解问题转换为线性不等式的约束优化问题。根据迭代算法优化,解得对应的可行解,从而判定当前网络状态。利用数据传输与网络延时的失真率函数关系,架构传输模型与失真率计算公式,通过链路干扰,描述多信道通信链路干扰状态,基于路由的指标函数定义式,获取相关的干扰电平与分配权值。依据入侵干扰约束度的计算与比较,得到理想的信道路由,经过发送信道分配结果至子节点,完成数据聚合,根据聚合节点间各个帧的发送与回复,实现最终的数据传输。仿真结果表明,所提方法不仅可以合理分配信道,而且传输量也得到大幅度提升。

This article proposed a dynamic multi-channel data transmission method under the constraint of in-trusion interference.Firstly,a matrix inequality was established to describe the constraint state of intrusion interfer-ence.By replacing the inverse matrix,the solving problem was transformed into a constrained optimization problem of linear inequality.According to the optimization of iterative algorithm,the feasible solution was obtained,so that the current network state could be determined.Based on the distortion-rate functional relationship between data trans-mission and network delay,the transmission model and the formula of distortion rate were constructed.Moreover,the interference state of multi-channel communication link was described by link interference.After that,the relevant interference levels and distribution weights were obtained by the definition of index function of router.According to the calculation and comparison for constraint degree of intrusion interference,ideal channel routers were obtained.After the channel allocation results were sent to the sub-nodes,the data aggregation was completed.Finally,data transmission was realized according to the transmission and reply of all frames between aggregation nodes.Simulation results show that the proposed method can not only allocate channel reasonably,but also improve the transmission ca-pacity.