diff --git a/src/main/java/fr/ntr/Packets.java b/src/main/java/fr/ntr/Packets.java
index 35b0460..f6c5a74 100644
--- a/src/main/java/fr/ntr/Packets.java
+++ b/src/main/java/fr/ntr/Packets.java
@@ -1,14 +1,14 @@
 package fr.ntr;
 
 public class Packets {
-    static final int packetSize = 100;
+    static final int PACKET_SIZE = 100;
     private int startTimeSending;
     private int endTimeSending;
     private int durationSending;
     private int bitsNumberRemaining;
 
     public Packets(int startTimeSending){
-        this.bitsNumberRemaining = packetSize;
+        this.bitsNumberRemaining = PACKET_SIZE;
         this.startTimeSending = startTimeSending;
     }
 
diff --git a/src/main/java/fr/ntr/User.java b/src/main/java/fr/ntr/User.java
index 517f8ba..d80be5d 100644
--- a/src/main/java/fr/ntr/User.java
+++ b/src/main/java/fr/ntr/User.java
@@ -26,16 +26,14 @@ public class User {
     }
 
     public void generateBandwidth() {
-        
         for(int y = 0; y < bandwidthTable[0].length; y++) {
             double rand = this.random.nextDouble();
-            for(int x = 0; x < bandwidthTable.length; x++) {
-                double h = 1 * Math.sqrt(-2 * Math.log(1 - rand));
-                double gain = h * h * Math.pow(10, rand * 1/10) * Math.pow(1 / this.distance, 3.5);
-                double spectralEfficiency = (20 * gain) / (15000 * (3.9*Math.pow(10, -21)));
-                double mkn = Math.log(1 + spectralEfficiency) / Math.log(2);
-                this.bandwidthTable[x][y] = mkn;
-            }
+            double h = 1 * Math.sqrt(-2 * Math.log(1 - rand));
+            double gain = h * h * Math.pow(10, rand * 1/10) * Math.pow(1 / this.distance, 3.5);
+            double spectralEfficiency = (20 * gain) / (15000 * (3.9*Math.pow(10, -21)));
+            double mkn = Math.log(1 + spectralEfficiency) / Math.log(2);
+            this.bandwidthTable[0][y] = mkn;
+            this.bandwidthTable[1][y] = mkn;
         }
     }
     
@@ -54,9 +52,9 @@ public class User {
         }
         // On calcule le nombre de paquets qu'on peut transmettre
         int bitsToSend = random.nextInt(2 * mbis + 1) + this.leftForNextSource;
-        int nbPacketsToSend = bitsToSend / Packets.packetSize ;
+        int nbPacketsToSend = bitsToSend / Packets.PACKET_SIZE;
         // On conserve le nombre de bits restants pour la prochaine génération
-        this.leftForNextSource = bitsToSend % Packets.packetSize;
+        this.leftForNextSource = bitsToSend % Packets.PACKET_SIZE;
         // On crée les paquets
         for(int i = 0; i < nbPacketsToSend; i++) {
             this.packetsToSend.add(new Packets(ticks));