Using the table at the end of the tutorial, determine the number of channels required in each cell. Consider a 7-cell system covering an area of 4800km2. The traffic in the seven cells is as follows:
Inverse Normal Distribution
The method used for finding the corresponding z-critical value in a normal distribution using the known probability is said to be an inverse normal distribution. The inverse normal distribution is a continuous probability distribution with a family of two parameters.
Mean, Median, Mode
It is a descriptive summary of a data set. It can be defined by using some of the measures. The central tendencies do not provide information regarding individual data from the dataset. However, they give a summary of the data set. The central tendency or measure of central tendency is a central or typical value for a probability distribution.
Z-Scores
A z-score is a unit of measurement used in statistics to describe the position of a raw score in terms of its distance from the mean, measured with reference to standard deviation from the mean. Z-scores are useful in statistics because they allow comparison between two scores that belong to different normal distributions.
- Using the table at the end of the tutorial, determine the number of channels required in each cell.
Consider a 7-cell system covering an area of 4800km2. The traffic in the seven cells is as follows:
|
Cell |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
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number |
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Traffic |
30.8 |
66.7 |
46.8 |
33.2 |
38.2 |
32.6 |
37.2 |
|
(Earlangs) |
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Each user generates an average of 0.04 Erlangs of traffic per hour, with a mean holding time of 120s. The system consists of a total of 395 channels and is designed for a grade of service of 0.025.
d )Using the table at the end of the tutorial, determine the number of channels required in each cell.
e)Determine the total number of subscribers.
f)Determine the average number of subscribers/channel.
g)Determine the subscriber density per km2.
h)Determine the total traffic in Erlangs
i). Determine the Erlangs per km2. j. What is the radius of a cell?
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