基于QUIC的擁塞控制算法動態(tài)切換機(jī)制

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關(guān)鍵詞：擁塞控制；動態(tài)切換；QUIC；網(wǎng)絡(luò)質(zhì)量探測

中圖分類號：TP319 文獻(xiàn)標(biāo)志碼：A 文章編號：1001-3695（2025）07-030-2147-07

doi：10.19734/j. issn.1001-3695.2024.12.0499

Abstract：The traditional approachof staticallyconfiguringasinglecongestioncontrolalgorithmcannolongeradapttothedynamic changes in networksacrosstimeandregions，the dynamicswitching mechanism for congestion control algorithmshas drawnwiespreadatentionfromtheindustry.Toaddressissues suchaslownetwork detectionaccuracyand transmisionperformance fluctuations during dynamic switching，this paper studied the dynamic switching mechanismforcongestioncontrol algorithms basedon QUIC inthe wired network scenario.This mechanismfirstlyintroducedthereceiverbuferfactortoenhance thealgorithm’sadaptabilitytodiferentconfigurationsof thereeivingend.Secondly，itestablishedabotlenecklinkbufer detectionmodelbasedonBBRtoimprovethedetectionaccuracyofnetwork conditions.Finally，itrealizedthesmothswitching between BBRand CUBIC toachievea balance betweenperformanceimprovementand stabilityduring theswitching process.Experimental results demonstrate that this mechanism achieves a throughput gain coverage rate of 78%～87% in shallow bottleneck link buffer scenarios and 89%～95% in deep bottleneck link buffer scenarios.Compared with traditional modeling-basedalgorithms，thismechanismsignificantlyimproves thebandwidthutilizationinwirednetwork scenariosand shows good stability in both throughput and round-trip delay dimensions.

Key Words：congestion control;dynamic switching；QUIC；network quality detection

0引言

在數(shù)字化浪潮下，社交、在線辦公、高清視頻等多元網(wǎng)絡(luò)應(yīng)用不斷涌現(xiàn)，對數(shù)據(jù)傳輸?shù)母咝院头€(wěn)定性提出了更高要求。（剩余17267字）