衛(wèi)星編隊(duì)流調(diào)度的門控對(duì)齊策略研究
通信學(xué)報(bào)
頁數(shù): 11 2024-08-22
摘要: 針對(duì)時(shí)間敏感網(wǎng)絡(luò)(TSN)門控調(diào)度對(duì)相鄰節(jié)點(diǎn)同步精度要求高,星間無線鏈路時(shí)延波動(dòng)引起相鄰節(jié)點(diǎn)門控開啟出現(xiàn)偏差,導(dǎo)致業(yè)務(wù)流在多個(gè)衛(wèi)星節(jié)點(diǎn)的調(diào)度不一致問題,提出了一種面向衛(wèi)星編隊(duì)流調(diào)度的門控對(duì)齊策略。首先,分析衛(wèi)星編隊(duì)中影響門控調(diào)度的因素,對(duì)業(yè)務(wù)流在端口的調(diào)度時(shí)間約束進(jìn)行建模,并構(gòu)建門控on/off列表模型;其次,設(shè)計(jì)在線滾動(dòng)灰色預(yù)測(cè)算法對(duì)節(jié)點(diǎn)間鏈路時(shí)延進(jìn)行預(yù)測(cè),基于預(yù)測(cè)結(jié)果對(duì)相鄰...