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# Cellular System

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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### Presentation Transcript

1. Cellular System Cellular concept Propagation models

2. Introduction to Mobile SystemsCellular System Concept

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

4. 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.

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

6. Interference R - the radius of the cell D - the distance between centers of the nearest co-channel cells Q - the co-channel reuse ratio

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

8. Decreasing the co channel interference - sectorisation

9. 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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