# 10.1 Setting the scenario

![image.png](https://wiki.cept.org/uploads/images/gallery/2026-04/scaled-1680-/ID9xXOacCyhGOTvZ-image.png)

A typical scenario consists of one victim link which describes the communication system being interfered and at least one interfering link which describes the interfering system(s) that may cause interference to the victim link. <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">CDMA</span></span></span> or <span data-highlighted="true" data-vc="highlighted-text"><span class="_kqswh2mm"><span class="_5pioz8co _189e1dm9 _1il9buyh _19lc184f _d0altlke" data-testid="definition-highlighter">OFDMA</span></span></span> systems are modeled differently, using special algorithm that creates a grid of multiple cells.

Set the scenario by selecting what system will be the victim and what system will be the interferer. Remember that setting the frequency at the “scenario level” overwrite any settings at the “System level”.

[![image.png](https://wiki.cept.org/uploads/images/gallery/2026-04/scaled-1680-/0YYtnktRPw5Zbsjc-image.png)](https://wiki.cept.org/uploads/images/gallery/2026-04/0YYtnktRPw5Zbsjc-image.png)

<div class="rich-media-item mediaSingleView-content-wrap image-align-start css-l4u3ba" data-layout="align-start" data-media-vc-wrapper="true" data-node-type="mediaSingle" data-renderer-start-pos="564" data-vc="media-single" data-width="1215" data-width-type="pixel" id="bkmrk-figure-209%3A-setting-"><div class="css-ievflj"><div data-alt="" data-collection="contentId-493381" data-context-id="493381" data-file-mime-type="image/png" data-file-name="9.png" data-file-size="25874" data-height="158" data-id="f76656d6-c106-48a8-9a82-f240d557f5b2" data-node-type="media" data-renderer-start-pos="565" data-type="file" data-width="1280"><div class="_2rko18qm _vchhusvi _kqswh2mm _ect4ttxp _p12f1osq _c71l1osq _1bsb1qmm _4t3ine4n _1hlmd0i9 _1rquusvi _eg541i5c _mts3kb7n _1ntskb7n _yfmhtlke _5sb1v00u new-file-experience-wrapper" data-media-vc-wrapper="true" data-testid="media-card-view" id="bkmrk-figure-209%3A-setting--1"><div class="_1reo15vq _18m915vq _2rko18qm _1e0c1txw _kqswh2mm _p12f1osq _1bsb1osq _4t3i1osq _c71l1osq media-file-card-view" data-cursor="pointer" data-test-media-name="9.png" data-test-progress="1" data-test-source="cache-remote" data-test-status="complete" data-testid="media-file-card-view"><div class="_kqswstnw _1bsb1osq _4t3i1osq _1e0c1txw _2lx21bp4 _1bah1h6o _4cvr1h6o align-center" data-testid="ImageRendererWrapper">![](blob:https://ecowiki.atlassian.net/9320169f-c336-425d-8b64-3eb6d118c66e#media-blob-url=true&id=f76656d6-c106-48a8-9a82-f240d557f5b2&collection=contentId-493381&contextId=493381&width=1280&height=158&alt=&clientId=113268fe-fe5b-4bc3-8ff3-07965dbf1d18)**Figure 209: Setting the simulation scenario**</div></div></div></div></div></div>**Table 40: Simulation scenario – Victim System**

<div class="pm-table-container with-shadow-observer" data-layout="align-start" data-testid="table-container" id="bkmrk-description-symbol-t"><div class="pm-table-wrapper" data-autosize="false" data-layout="align-start" data-number-column="false" data-table-local-id="" data-vc="table-node-wrapper"><table data-layout="align-start" data-number-column="false" data-table-width="760" data-testid="renderer-table" style="width: 100%;"><colgroup></colgroup><tbody><tr><td colspan="1" rowspan="1" style="width: 11.4381%;">**Description**

</td><td colspan="1" rowspan="1" style="width: 9.29593%;">**Symbol**

</td><td colspan="1" rowspan="1" style="width: 20.0191%;">**Type**

</td><td colspan="1" rowspan="1" style="width: 7.50715%;">**Unit**

</td><td colspan="1" rowspan="1" style="width: 51.7159%;">**Comments**

</td></tr><tr><td colspan="1" rowspan="1" style="width: 11.4381%;">Frequency

</td><td colspan="1" rowspan="1" style="width: 9.29593%;">f<sub data-renderer-mark="true">VLT</sub> or f<sub data-renderer-mark="true">ILT</sub>

</td><td colspan="1" rowspan="1" style="width: 20.0191%;">Distribution or Scalar

</td><td colspan="1" rowspan="1" style="width: 7.50715%;">MHz

</td><td colspan="1" rowspan="1" style="width: 51.7159%;">Distribution of the centre frequency of the victim system or the interfering system links.

</td></tr><tr><td colspan="1" rowspan="1" style="width: 11.4381%;"></td><td colspan="1" rowspan="1" style="width: 9.29593%;"></td><td colspan="1" rowspan="1" style="width: 20.0191%;"></td><td colspan="1" rowspan="1" style="width: 7.50715%;"></td><td colspan="1" rowspan="1" style="width: 51.7159%;"></td></tr></tbody></table>

</div><div class="pm-table-sticky-scrollbar-container-view-page" data-vc="table-sticky-scrollbar-container"></div></div> The simulation control is explained in Section ‎2.10.