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On Propagation of Self-Similar Traffic Through an Energy-Conserving Wireless Gateway

机译：通过节能无线网关对自我相似流量的传播

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摘要

It has been well established by now that high-speed wireline traffic exhibits self-similar behavior. Several studies in the past have hypothesized that wireless traffic is also self-similar but without adequate justification. In this paper we study the propagation of self-similarity as self-similar wireline traffic feeds to a gateway that interconnects a wireline to a wireless network. We model the wireline traffic as an On/Off process. We propose models for buffering and repacking performed at the gateway. Based on those models and also statistical models for the wireless channel, we study the statistics of the outgoing On/Off traffic. We show that when the On and Off state durations of the input traffic are both heavy-tail distributed, such as in the case of LAN traffic, the outgoing traffic is self-similar. On the other hand, if the On state durations are heavy-tail distributed but the Off state durations have finite variance, such as in variable-bit-rate video traffic, the self-similarity maybe disappear if the gateway has a buffer much larger than the maximum channel capacity and it operates under an energy conserving protocol.
机译：现在已经很好地确定了高速线缆流量呈现自我相似的行为。过去的几项研究假设无线交通也是自我相似但没有充分的理由。在本文中，我们研究自相似性作为自相似的电缆业务的传播到互连电缆到无线网络的网关。我们将电缆流量塑造为开/关过程。我们提出用于在网关上进行的缓冲和重新包装的模型。基于这些模型以及无线频道的统计模型，我们研究了传出/关闭流量的统计数据。我们表明，当输入流量的ON和OFF状态持续时间都是重型分布，例如在LAN流量的情况下，传出业务是自相似的。另一方面，如果ON状态持续时间是重型分布，但关闭状态持续时间具有有限的方差，例如在可变比特率视频流量中，如果网关具有大于的缓冲区，则自相似性可能会消失最大信道容量和它在节能协议下运行。

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