一種基于對策模型的ATM網(wǎng)絡連接接納控制策略
A CONNECTION ADMISSION CONTROL SCHEME BASED ON THEORETIC GAME MODEL IN ATM NETWORKS
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摘要: 本文先簡述了ATM網(wǎng)絡進行連接接納控制(Connection Admission Control:CAC)的主要方法,其中主要綜述了基于動態(tài)帶寬分配的CAC策略,而后從合作對策模型的角度討論業(yè)務間共享鏈路資源的公平性問題,提出一種基于時延帶寬積的業(yè)務收益函數(shù)形式,并通過遺傳算法求解待優(yōu)化的對策函數(shù),以決定對呼叫請求的接入或拒絕。仿真結果表明此方法能夠更好地保證不同帶寬和服務質(zhì)量要求的業(yè)務共享網(wǎng)絡資源的公平性。Abstract: In this paper, the main schemes of connection admission control (CAC) in ATM networks are briefly overviewed especially the principle of dynamic bandwidth allocation. Then the fair share of the bandwidth among different traffic sources is analyzed based on cooperative game model. A CAC scheme combining genetic algorithm (GA) to optimize the bandwidth-delay-product formed utilization function that ensures the fair share of accepting/rejecting the incoming calls is proposed. Simulation results show that our scheme ensures fairness of the shared bandwidth to different traffic sources.
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