大型舰载实时通信系统的通信优化模型设计

Design of Communication Optimization Model for Large-scale Shipboard Real-Time Communication System

在舰载通信的研究中,大型舰载实时通信系统性能的好坏关系到舰载通信的高效性。舰载实时通信系统为了保证实时性,当有新的通信任务进入时,需重新计算并调整所有任务连接的开始时间,当旧任务还没完全退出时,会产生通信任务冲突。传统的大型舰载实时通信为了解决这冲突带来的问题,往往采用延迟的策略,虽然延迟能避免冲突,但是对延迟过程没有进行细分,造成所有任务都要参与延迟,效率较低。提出一种大型舰载实时通信系统通信优化模型,采用支持向量数据描述的数据检测算法,将到超球体中心距离高于球体半径的数据当成冲突数据,调整新加入工作窗口休眠模式的启动时间,降低休眠工作窗口间数据调度的竞争力,提高处在休眠状态工作窗口的数据调度优先级,将采用节能特性数据调度方法中调度器的输入平滑算法,描述成两目标的非线性最优化问题,经简单的循环运算获取具有最高优先级的休眠窗口,优先调度休眠窗口中的冲突数据。仿真结果表明,所提模型不仅拥有较高的冲突调度效率,而且平均吞吐率以及准确率均达到了令人满意的效果。

In the research of shipboard communication, if the performance of large - scale shipboard real - time communication is good or bad relate to the high efficiency of shipboard communication. In the paper, a communication optimization model for large - scale shipboard real - time communication system was proposed. A data detection algo- rithm based on support vector data description was applied, and the radius distance of super sphere was made as con- flict data. The start up time of sleep mode in new added work window was adjusted to reduce the competitiveness of data scheduling between sleep work windows and improve the scheduling priority of the data in a sleep state work win- dow. The input smoothing algorithm of scheduler in the energy saving feature data scheduling method was described as the nonlinear optimization problem of two goals. Through a simple loop computation, the sleep window with the highest priority can be obtained to schedule the conflict data in the sleep window preferentially. The simulation results show that not only the proposed model has high conflict scheduling efficiency, but the average throughput rate and ac- curacy are aehieved satisfactory result.