M/M/1 Retrial Queue with Working Vacation Interruption and Feedback under N-Policy

<table>Effect of <svg height="12.175" id="M185" style="vertical-align:-2.29482pt" version="1.1" viewbox="0 0 8.5249996 12.175" width="8.5249996" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
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q-8 0 -28.5 -14t-38.5 -32l-17 22q41 43 85 71t66 28q23 0 23 -39q0 -19 -10 -64l-24 -103h2q77 101 201 182q37 24 74 24q31 0 31 -47z" id="x1D702"></path></g>
</svg> on the expected operating cost per unit time.</table>

Journal of Applied Mathematics

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Figure 7

Figure 7: M/M/1 Retrial Queue with Working Vacation Interruption and Feedback under N-Policy 