A group of N stations share a 56-kbps pure ALOHA channel. Each station outputs a 1000-bit frame on average once every 100 sec, even if the previous one has not yet been sent (e.g., the stations can buffer outgoing frames). What is the maximum value of N? (Hint: Aloha bandwidth efficiency is 18.4%)

A group of N stations share a 56-kbps pure ALOHA channel. Each station outputs a 1000-bit frame on average once every 100 sec, even if the previous one has not yet been sent (e.g., the stations can buffer outgoing frames). What is the maximum value of N? (Hint: Aloha bandwidth efficiency is 18.4%)

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Concept explainers

Network transmission cabling

A network is a collection of devices connected by communication links. A device can be a computer or any instrument capable of sending and receiving data or information formed by other nodes toward the network. A channel that connects people or things is known as a network. It sends the data from one place to another. It is the basic concept of a computer, network, and data communications.

Question

1. A group of N stations share a 56-kbps pure ALOHA channel. Each station outputs a
1000-bit frame on average once every 100 sec, even if the previous one has not yet
been sent (e.g., the stations can buffer outgoing frames). What is the maximum value
of N? (Hint: Aloha bandwidth efficiency is 18.4%)
Compute usable bandwidth:
State the maximum value of N:
Solution:

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