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Homeplug-AV CSMA/CA Cross-Layer Extension for QoS Improvement of Multimedia Services

机译:Homeplug-AV CSMA / CA跨层扩展,用于改善多媒体服务的QoS

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This letter proposes a cross-layer extension of the CSMA/CA protocol used in the Power-line Communications standard HomePlug-AV. Its main goal is to allocate more bandwidth to nodes with QoS needs by giving them more channel access opportunities. An easy way to do this is by appropriately modifying the contention window size of the participants. The presented protocol considers both the QoS requirements of the upper-layer services and the physical layer restrictions. It is mathematically modeled and evaluated by means of a realistic simulator in an in-home scenario, showing that it significantly improves the system performance compared to the standard version of the protocol and to any other previously presented extension.
机译:这封信提出了电力线通信标准HomePlug-AV中使用的CSMA / CA协议的跨层扩展。其主要目标是通过为具有QoS需求的节点分配更多的带宽来为其分配更多的信道访问机会。一种简单的方法是适当修改参与者的竞争窗口大小。提出的协议同时考虑了上层服务的QoS要求和物理层限制。在家庭场景中,通过一个现实的仿真器对该模型进行了数学建模和评估,表明与协议的标准版本以及以前提供的任何其他扩展相比,它可以显着提高系统性能。

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