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# CS314 Assignment No 01 Fall 2019 Solution & Discussion Due Date: 13-11-2019

CS314 Assignment No 01 Fall 2019 Solution & Discussion Due Date: 13-11-2019

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CS314( intro. To cellular networks ) ASSIGNMENT #1 Fall 2019 solution

CS314 Assignment#01 Solution fall 2019

``Assignment No. 01  ``

Semester: Fall 2019
CS314: Introduction to Cellular Networks Total Marks: 15

Due Date:13/11/2019

Instructions:
You need to use MS word document to prepare and submit the assignment on VU-LMS.
It should be clear that your assignment will not get any credit if:

The assignment is submitted after due date.
The assignment is not in the required format (doc or docx)
The submitted assignment does not open or file is corrupt.
Assignment is copied (partial or full) from any source (websites, forums, students, etc)

Objective:

The objective of this assignment is to increase the learning capabilities of the students about:

• Frequency Planning
• Cell Pattern
• Channels Distribution
• Network Cells

Assignment

Question – 1

Consider a network consisting of 3 clusters. Each cluster uses the frequency reuse parameters i=1 and j=3 to allocate frequency channel to the cells in the clusters. You are required to draw cell pattern showing all three clusters and label the co-channel cells with same name.

Question – 2

Consider a situation where a cellular network is allocated 300 duplex channels to provide network services in a service region. The company decides to replicate the clusters 10 times and uses a frequency reuse factor of 12. The radius of each cell will be 2 miles. For the given scenario, answer the following questions:

1. What will be maximum number of channels that the network can use at any given time?
2. What should be the minimum distance kept between two co-channel cells in order to avoid any interference?

Best of Luck!

Question – 2
Consider a situation where a cellular network is allocated 300 duplex channels to provide network services in a service region. The company decides to replicate the clusters 10 times and uses a frequency reuse factor of 12. The radius of each cell will be 2 miles. For the given scenario, answer the following questions:

What will be maximum number of channels that the network can use at any given time?
What should be the minimum distance kept between two co-channel cells in order to avoid any interference?

``Co-channels cells distance(D)= 12 Radius of the cell = 2 K = 12 D/R= √3K 》1/12÷2=√3(12) 》6 = 6 Minimum distance = 6``

Question – 1
Consider a network consisting of 3 clusters. Each cluster uses the frequency reuse parameters i=1 and j=3 to allocate frequency channel to the cells in the clusters. You are required to draw cell pattern showing all three clusters and label the co-channel cells with same name.

Answe

``Cell cluster  size K= 12 Frequency reuse factor = 1/12 No. of duplex channels (T)=300 Total channels (N) = T/K 》300/12 = 25 channels per cell  K=12 , N= 25 Channels/cell Cluster are replicated M= 10 , T=300 System  capacity = M×T 》10 ×300 =3000 Total Channels``

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