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Based on the effective capacity model, the tail probability of backlog size in a wireless communication system can be characterized by two effective capacity functions, namely, the QoS exponent and the nonempty buffer probability. The QoS exponent is well understood in the literature; however, there is little known about the other function, i.e., the nonempty buffer probability, because this function...
The complementary cumulative distribution function (CCDF) of delay in a wireless communication system can be approximated by the effective capacity model. However, it is still unknown if such a distribution function can be approximated analytically and accurately. In this paper, we consider a system model with a Nakagami-m fading channel and an exponential arrival process, and derive a simple approximation...
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