Upper Bounds on Performance Measures of Heterogeneous <svg style="vertical-align:-0.252pt;width:68.0625px;" id="M1" height="15.5875" version="1.1" viewBox="0 0 68.0625 15.5875" width="68.0625"  xmlns="http://www.w3.org/2000/svg">
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</svg> Queues

<table>Average waiting times in queue for a heavily loaded system, <svg height="15.35" id="M123" style="vertical-align:-3.56265pt" version="1.1" viewbox="0 0 48.900002 15.35" width="48.900002" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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Mathematical Problems in Engineering

fig3

Figure 3

Figure 3: Upper Bounds on Performance Measures of Heterogeneous <svg style="vertical-align:-0.252pt;width:68.0625px;" id="M1" height="15.5875" version="1.1" viewBox="0 0 68.0625 15.5875" width="68.0625"  xmlns="http://www.w3.org/2000/svg">
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</svg> Queues 

Mathematical Problems in Engineering

Upper Bounds on Performance Measures of Heterogeneous 𝑀 / 𝑀 / 𝑐 Queues

Figure 3

Upper Bounds on Performance Measures of Heterogeneous Queues