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SEAMCAT models one single victim link receiver (VLR) connected to a victim link transmitter (VLT) operating amongst a population of one or more interfering link transmitters (ILT) whichare linked to an interfering link receiver (ILR). These interferers may belong to the same system as the victim, a different system or a mixture of both. The locations of the interferers are distributed around the victim, either completely randomly or with some relation to the location of victim in a manner that can be specified by the user.
Figure 5 illustrates the terminology of the various elements that are simulated for (a) ‘generic’ systems (i.e. non-cellular) and (b) cellular systems.'
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Figure 5: Terminology used in SEAMCAT (a) generic systems and (b) cellular systemsAnchor {Figure 5 {Figure 5
It is common practice to use a uniform random distribution for the locations. The density of interferers is set in line with the environment being modelled, i.e. an urban environment should have a higher density than a rural environment. Only a proportion of the interferers are active at any instance. This proportion may depend for example on the day of the week as well as the time of day. Figure 6 illustrates how the interferers and victim may appear for one simulation trial. Also illustrated is the victim link transmitter providing the victim’s wanted signal (dRSS: desired Received Signal Strength).
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