diff --git a/src/main/java/fr/ntr/User.java b/src/main/java/fr/ntr/User.java
index 136a55c..4d3f9e6 100644
--- a/src/main/java/fr/ntr/User.java
+++ b/src/main/java/fr/ntr/User.java
@@ -28,7 +28,7 @@ public class User {
             for(int j = 0; j < bandwidthTable[i].length; j++) {
                 double h = 1 * Math.sqrt(-2 * Math.log(1 - random));
                 double gain = h * Math.pow(10, random * 1/10) * Math.pow(1 / this.distance, 3.5);
-                double spectralEfficiency = (43 * gain) / (15000 * (-174));
+                double spectralEfficiency = (20 * gain) / (15000 * (3.9*Math.pow(10, -21)));
                 double mkn = Math.log(1 + spectralEfficiency) / Math.log(2);
                 this.bandwidthTable[i][j] = mkn;
             }