基于802.11bf的无线感知会话模式规划方法

Wi-Fi Sensing Session Mode Planning Method Based on 802.11bf

实现Wi-Fi感知的802.11bf协议草案给出了具有普适性的无线感知会话工作流程,该流程虽然能够应对各种场景,但面对实际应用中任意分布的目标感知测量区域,若根据协议流程直接发起感知测量会话,会造成通信资源浪费等问题。针对该问题,首先定义了802.11bf在应用中的通感一体化性能衡量指标;其次通过多目标遗传算法提出了一种无线感知会话模式规划方法,利用该规划方法分别从通信性能和感知性能两个方面进行优化。仿真结果显示,所提方法在保证无线感知会话在应用时的感知性能指标的同时,明显提升了无线感知会话期间的通信性能指标。

The draft 802.11bf protocol for implementing Wi-Fi sensing provides a universal Wi-Fi sensing session workflow.Although this workflow can handle various scenarios,in the face of arbitrarily distributed target sensing measurement areas in practical applications,if the sensing session is initiated directly according to the protocol workflow,it will cause problems such as wasted communication resources.To address this problem,the communication sensing integration performance index of 802.11bf in applications is defined.Then,a Wi-Fi sensing session mode planning method is proposed by multiobjective genetic algorithm,which is optimized from two aspects of communication performance and sensing performance respectively.The simulation results indicate that the proposed method significantly improves the communication performance indexes during the Wi-Fi sensing session while ensuring the sensing performance indexes of the Wi-Fi sensing session in application.