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4.5 4.5

In this section the Free Space Model is used to derive the attenuation on the different paths and the Victim Link and Interfering Link operate at the same frequency – 1000 MHz – co-channel interference. Figure 115 presents an illustration of the various radii (i.e. coverage radius and simulation radius) that are used in SEAMCAT and with reference to the various pairs of transmitters and receivers used for a simulation.

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Figure 115: Illustration of the Coverage Radius and the Simulation Radius with respect to the pairs of transmitters and receivers of the victim and interfering links

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The cluster characterises the frequency re-use of a mobile network (see Figure 116).

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Figure 116: Frequency cluster

The victim link coverage radius (i.e. centred on the victim link transmitter) may then be calculated by using the formula below. Figure 117´presents how to set-up SEAMCAT.

 

(Eq. 26)

 

 

 

 

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Figure 117: Calculation of the victim link coverage radius

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                                           dRSS = 30 (dBm) + 9 + 9 - (32.5 + 10 log(1.43^2) + 20 log(1000)) = -47.5 dBm

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Figure 118: Resulting dRSS distribution

 

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Figure 119: Calculation results of the victim link coverage radius

 

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Figure 120: Illustration of the VLR and VLT positioning based on the traffic limited network coverage radius (ILT-red, ILR-green, VLR-yellow, VLT-blue)

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