A pure ALOHA network transmits 200 bit frames using a shared channel with 200 Kbps bandwidth. If the system (all stations put together) produces 500 frames…
A pure ALOHA network transmits 200 bit frames using a shared channel with 200 Kbps bandwidth. If the system (all stations put together) produces 500 frames per second, then the throughput of the system is ...........
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Correct answer: (B) 0.184
Explanation
Throughput of pure ALOHA is S = G × e⁻²ᴳ, where G is the load (frames per frame-transmission time). Frame transmission time = 200 bits / 200 kbps = 1 ms. The system produces 500 frames per second = 0.5 frames per ms, so G = 1/2. S = 0.5 × e⁻¹ ≈ 0.184 (the maximum throughput of pure ALOHA). So the answer is (b).