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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 concept

Propagation models

Introduction to Mobile SystemsCellular System Concept

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

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.

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

Interference

R - the radius of the cell

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

Q - the co-channel reuse ratio

Decreasing the co channel interference - sectorisation

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