Wireless Networking

Running head: WIRELESS NETWORKING
Wireless Networking
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WIRELESS NETWORKING1
Table of Contents
Question 1: With the help of diagram explain the concept of Cell Splitting.............................2
Question 2: A new wireless service provider decided to employ a cluster of 12 cells as the
basic module of frequency reuse............................................................................................3
Question 3:.................................................................................................................................4
References:.................................................................................................................................9

WIRELESS NETWORKING2
Question 1: With the help of diagram explain the concept of Cell Splitting.
In wireless communication, the area of a tower is represented by the shape of a cell.
Shape of cells are usually hexagonal. Cell Splitting is the process of dividing larger cells into
smaller ones as a result increases the capacity of the congested areas. It includes sub-dividing
of a over crowded cell into inconsequential cells as a result of which causes swelling up of
the size of the cellular structure (Clerckx et al., 2016). This in turn strengthens the number of
times the channels get used continuously. As a result of cell splitting all the cells gets divided
into their separate base position and their individual compatible drop with an aerial height
and transmission power.
The figure that is represented below denotes the zone that is attended by A as the
flooded area with traffic (Bi, Ho, & Zhang, 2015). The new base position that are acquired
are subsequentially needed in the area to gush the number of channels that are available in the
region (Anand, 2017). It also reduces the service of the region served by the station at the
lone base. To be specific, A is exactly confined by six new microcells that are B, C, D, E, F
and G.

WIRELESS NETWORKING3
Figure 1: Detailed structure of cell splitting
Question 2: A new wireless service provider decided to employ a cluster of 12
cells as the basic module of frequency reuse.
1. Find the reuse distance if the radius of each cell is 2km
2. If each channel is multiplexed among eight users how many calls a can be
simultaneously processed by each cell if only 10 channels per cell are reserved
for control, assuming a total bandwidth of 30 MHz is available and each simplex
channel consists of 25 KHz.
3. If each user keeps the traffic channel for an average of 5% time and an average
of 60 requests per hour are generated, what is the Erlang value?
N=12 BW =30 MHz R=2 km
Control channels per cell=10 no of users per channel=8
(i).
Reuse distance , D= √ ( 3 N )∗R
¿ √ ( 3∗12 )∗2=12 km
Hence the required reuse distance is 12 km.
(ii).
Simplest channel=25 kHZ
Channel bandwidth=25∗2=50 kHz