Hand-off traffic modelling in cellular networks
Hand-off traffic modelling in cellular networks
复制标题
蜂窝网络中的切换流量建模
DOI：
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发表时间：
1997
期刊：
影响因子：
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通讯作者：
F. Takawira
中科院分区：
文献类型：
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作者：
M. Rajaratnam;F. Takawira
从电信流量分析的角度来看，切换流量是固定（POTS）电话网络和移动电话网络之间的主要区别特征。在早期的宏蜂窝网络分析中，切换流量通常被建模为泊松过程。随着当今微蜂窝网络的激增，移动设备可能在许多不同的蜂窝边界多次请求切换，因此经历一系列可能改变其流量概况的切换。泊松假设对于已被多次转交的呼叫可能不再有效。我们使用概率分布的均值和方差对切换流量进行建模。我们尝试捕获切换过程中发生的流量分布变化。我们表明，切换流量实际上是一个平滑的流量过程，并且切换流量的两矩表示优于单矩表示。
From a teletraffic analysis point of view, hand-off traffic is the main distinguishing feature between fixed (POTS) telephone networks and mobile telephone networks. In earlier macro-cellular network analysis, hand-off traffic was generally modelled as a Poisson process. With the present-day proliferation of micro-cellular networks, mobiles may request for hand-off many times at many different cellular boundaries and therefore undergo a series of hand-offs that may alter their traffic profile. The Poisson assumption may no longer be valid for calls that have been handed off a great many times. We model hand-off traffic using the mean and the variance of its probability distribution. We attempt to capture the change in traffic profile that occurs during the hand-off process. We show that hand-off traffic is in fact a smooth traffic process and that the two moment representation of hand-off traffic is superior to the single moment representation.