GATE Overflow Test Series | Computer Networks | Test 1 | Question: 16

Question

A slotted ALOHA network transmits $\text{250-bit}$ frames using a shared channel with a $250\;\text{kbps}$ bandwidth. The throughput (percentage-wise) if the system (all stations together) produces $200$ frames per second(round off to $1$ decimal digit) will be __________

Answer 1

Transmission time $(T_t) = \frac{100}{100 \times 10^3} = 1$ ms
    
    $1$ second $\rightarrow 200$ frames
    
   $1$ frame $\rightarrow 1/200$ second or $5$ ms
    Or $1$ ms $\rightarrow 1/5$ frame
    
  Average number of frames generated by the system during one frame transmission time is $G = 1/5$
    
 Throughput of slotted ALOHA $= G\times e^{-G} = 1/5 \times e^{-1/5} = 16.37 \%.$

Comments

isn’t this the effficiency but in question we are asked throughput?

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Why throughout is not multiplied with 200 as in this ques

https://gateoverflow.in/357483/gate-cse-2021-set-2-question-54