Performance of Downlink Shared Channels in Umts Scenarios Using Markov Fluid Process
نویسندگان
چکیده
In this work, we propose a new model of the Downlink Shared Channel (DSCH) buffer in UMTS Release ’99 cellular systems. Under our assumptions, the available bandwidth dedicated to DSCH traffic is limited by voice connections carried by Dedicated Channels (DCHs) on the one hand, and by traffic on the Forward Access Channel (FACH) on the other hand. We propose to model the DSCH buffer content as a Markov driven fluid queue with jumps and to derive several performance measures, namely stationary DSCH buffer content, bit loss probability and overflow probability. These measures are obtained through adequate transformation of the original fluid queue.
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