基于业务类型的微波与激光混合链路中继卫星接入控制

Access Control Algorithm of Data Relay Satellite with Microwave and Laser Hybrid Links based on Jobs Type

针对用户星数据中继接入请求超额定购问题,分析了用户星业务种类,研究了中继卫星接入控制所受多类约束的特点,建立了约束满足模型;以接入业务总优先级权值最高为原则,根据业务的类型、时间有效性和业务优先级设置链路接入灵活度和业务冲突集,以业务的接入顺序和选择接入的中继星链路为优化对象,提出了一种基于业务类型和自适应小窗口蚁群算法双层优化的中继卫星混合链路接入控制算法。仿真实验表明,所建模型可实现多类型业务与多种类天线的接入控制,提出的双层优化算法较单层寻优效果更佳,且具有较快的收敛速度和较强的全局优化能力,因而所提算法可有效解决多约束条件下多业务类型、多种类天线和多中继星的接入控制问题。

According to oversubscribed requests problem of user satellite for data relay access, the types of job and the features of the multi-constraint of access control are studied. A constraint satisfaction model is established based on it. The link access flexibility and jobs＇ conflict set are set according to the jobs type, valid time and priority setting. To maximize the number of priority weighted jobs, an access control algorithm of data relay satellite with microwave and laser hybrid links is introduced. The double-layer optimization hybrid links algorithm is based on the jobs type and adaptive small-window ant colony algorithm. The sequence of jobs access and the selection of relay satellite link are set as optimization objects. Simulation results show that the model can realize multi-type jobs access control efficiently. The proposed double-layer optimization algorithm is better than the single-layer optimization, and it is with a faster convergence speed and better global optimization ability. So the proposed algorithm can effectively solve the multi-type jobs with multi- constraint, multi-antenna and multiple relay satellites access control problem.