模糊信道忙闲划分的概率媒体接入控制协议  

A Probabilistic Media Access Control Protocol Based on Fuzzy Division of Channel Busy/Idle States

作　　者：于必成 赵学军[1] 袁修久 侯蓓 YU Bicheng;ZHAO Xuejun;YUAN Xiujiu;HOU Bei(Air Force Engineering University Department of Basic Science,Xi'an 710000,China;Air Force Engineering University Information and Navigation College,Xi'an 710000,China)

机构地区：[1]空军工程大学基础部,西安710000 [2]空军工程大学信息与导航学院,西安710000

出　　处：《电光与控制》2022年第4期112-116,共5页Electronics Optics & Control

摘　　要：针对无人机自组网中多种混合业务并行传输以及现有的信道忙闲划分方式未考虑信道忙闲模糊化特征等问题,提出了一种模糊信道忙闲划分的概率媒体接入控制协议。该协议主要采用模糊信道忙闲划分和概率接入两大核心机制,其中,模糊信道忙闲划分机制通过对信道忙闲的模糊化特征进行分析,更加合理地对信道忙闲程度进行划分;概率接入机制能够保证系统在重负载情况下,有效减少数据分组碰撞,提高最高优先级业务的成功传输率和信道利用率。仿真结果表明,该协议实现了多种优先级业务区分服务,并且保证了最高优先级业务严格的时效性和可靠性,同时在高负载下提高了网络的信道利用率。In UAV Ad Hoc networks,multi-priority services are transmitted in parallel, and the existing mechanism of channel busy/idle state division does not consider the fuzzy characteristics of channel states.To solve the problem,a probabilistic media access control protocol based on fuzzy division of channel busy/idle state is proposed.The protocol mainly adopts two core mechanisms,that is,fuzzy division of channel busy/idle state and media access based on probability.The former mechanism can more reasonably divide the channel busy/idle degree by analyzing the fuzzy characteristics of channel states.The latter mechanism can improve the successful transmission rate of the highest priority services and channel utilization rate while effectively reducing data packet collisions under heavy network load.The simulation results show that the protocol can realize the differentiated transmission of multi-priority services,provide strict timeliness and reliability for the transmission of the highest priority service,and improve channel utilization rates under heavy network load.

关 键 词：无人机自组网 多优先级 模糊信道忙闲划分机制 概率接入机制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]