Cellular system
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Cellular System. Cellular concept Propagation models. Introduction to Mobile Systems Cellular System Concept. The factor N is called the cluster size and is given N=i 2 +ij+j 2. To find the nearest co-channel neighbor of a particular cell, one must do the following:

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Cellular System

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Cellular system

Cellular System

Cellular concept

Propagation models


Introduction to mobile systems cellular system concept

Introduction to Mobile SystemsCellular System Concept


The factor n is called the cluster size and is given n i 2 ij j 2

The factor N is called the cluster size and is givenN=i2+ij+j2


Cellular system

To find the nearest co-channel neighbor of a particular cell, one must do the following:

  • move i cells along any chain of hexagons and then

  • turn 60 degrees counter-clockwise and move j cells.


Cellular system

i=1, j=2 , N=1+2+4=7


Interference

Interference

R - the radius of the cell

D - the distance between centers of the nearest co-channel cells

Q - the co-channel reuse ratio


Table 1 co channel reuse ratio s i for some values of n

Table 1. Co-channel reuse ratio, S/I for some values of N


Decreasing the co channel interference sectorisation

Decreasing the co channel interference - sectorisation


Decreasing the co channel interference sectorisation1

Decreasing the co channel interference - sectorisation

Table 2. Co-channel reuse ratio, S/I for values of N=7 using sectorial structure


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