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电子学报  2013 

QoS区分的无线通信仿生建模

DOI: 10.3969/j.issn.0372-2112.2013.08.033, PP. 1660-1665

Keywords: QoS区分服务,仿生竞争模型,LV模型,拥塞

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Abstract:

为了实现动态网络环境下的自适应QoS区分服务,提出了QoS区分的无线通信仿生竞争模型,模型借用LV(Lotka-Volterra)生物竞争模型的思想,建立生态系统与无线网络之间的映射关系,同时结合IEEE802.11e协议设置不同优先级,并将模型瞬时输出值和稳态输出值作为各数据流的发送速率.与传统的QoS区分服务机制EDCA相比,显著提高了网络系统自适应性和快速收敛性,对突发数据流具有很强的抗扰动性,同时有效改善了数据传输友好性,避免了网络拥塞.

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