diff --git a/src/main/java/fr/ntr/AccessPoint.java b/src/main/java/fr/ntr/AccessPoint.java
index 20a6b4b..cab58b8 100644
--- a/src/main/java/fr/ntr/AccessPoint.java
+++ b/src/main/java/fr/ntr/AccessPoint.java
@@ -1,28 +1,13 @@
 package fr.ntr;
 
-import java.io.File;
-import java.io.FileOutputStream;
 import java.io.IOException;
 import java.util.ArrayList;
 import java.util.List;
-import java.util.Random;
-
-import fr.ntr.scheduler.Scheduler;
 
 public class AccessPoint {
-    /**
-     * nombre de slots
-     */
-    private static int timeSlotNb;
-    /**
-     * Nombre de sous-porteuses
-     */
-    private static int subCarrierNb;
 
     private final Cell cell1;
     private final Cell cell2;
-    private FileOutputStream outputDataFile;
-
     private final List<Cell> cellList;
 
     public AccessPoint(Cell cell1, Cell cell2){
@@ -38,14 +23,6 @@ public class AccessPoint {
      * @param duration
      */
     public void startSimulation(int duration, List<User> users) {
-        try{
-            this.outputDataFile = new FileOutputStream("export" + File.separator + users.size() + ".csv", true);
-            outputDataFile.write("tick;x;y;user;bandwidth;delay;\n".getBytes());
-        } catch(IOException e) {
-            System.err.println(e.getClass().getSimpleName() + " : " + e.getMessage());
-            System.exit(1);
-            return;
-        }
         for (int ticks = 0; ticks < duration; ++ticks) {
             // Simulation
             cell1.reset();
@@ -58,7 +35,8 @@ public class AccessPoint {
             computeInterference();
             // traite les données et les enregistre dans un fichier
             try {
-                analyseData(ticks, users);
+                cell1.analyseData(ticks, users);
+                cell2.analyseData(ticks, users);
             } catch (IOException e) {
                 System.out.println("Can't export data");
             }
@@ -92,32 +70,4 @@ public class AccessPoint {
             }
         }
     }
-
-    private void analyseData(int tick, List<User> users) throws IOException {
-        /* double delayAverage = 0.0;
-        int nbPacketsSent = 0;
-        for(User u: users){
-            List<Packets> packets = u.getPacketsSent();
-            nbPacketsSent += packets.size();
-            for (Packets p: packets){
-                delayAverage += p.getDurationSending();
-            }
-        }
-        delayAverage = delayAverage/nbPacketsSent;
-        for(int i = 0; i < frame.length; i++) {
-            for(int j = 0; j < frame[i].length; j++) {
-                ResourceBlock ur = frame[i][j];
-                if(ur.getUser() != null) {
-                    String data = (tick + ";" + i + ";" + j + ";" + this.users.indexOf(ur.getUser()) + ";" + ur.getBandwidth() + ";" + delayAverage +";\n");
-                    try{
-                        outputDataFile.write(data.getBytes());
-                    }catch(IOException e){
-                        System.err.println("Cannot write the data in the output file");
-                        System.exit(1);
-                        return;
-                    }
-                }
-            }
-        } */
-    }
 }
diff --git a/src/main/java/fr/ntr/Cell.java b/src/main/java/fr/ntr/Cell.java
index 5d5800d..741d043 100644
--- a/src/main/java/fr/ntr/Cell.java
+++ b/src/main/java/fr/ntr/Cell.java
@@ -2,6 +2,9 @@ package fr.ntr;
 
 import fr.ntr.scheduler.Scheduler;
 
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.util.List;
 import java.util.Random;
 
@@ -24,10 +27,21 @@ public class Cell {
      * Trame
      */
     private final ResourceBlock[][] frame;
-    public Cell(Scheduler scheduler, ResourceBlock[][] frame, List<User> users) {
+    private final FileOutputStream outputDataFile;
+
+    public Cell(Scheduler scheduler, ResourceBlock[][] frame, List<User> users, String filename) {
         this.users = users;
         this.scheduler = scheduler;
         this.frame = frame;
+        FileOutputStream output = null;
+        try{
+            output = new FileOutputStream(filename, true);
+            output.write("tick;x;y;user;bandwidth;delay;\n".getBytes());
+        } catch(IOException e) {
+            System.err.println(e.getClass().getSimpleName() + " : " + e.getMessage());
+            System.exit(1);
+        }
+        this.outputDataFile = output;
     }
 
     public void updateBandwidth(int ticks) {
@@ -57,6 +71,34 @@ public class Cell {
         scheduler.scheduling(tick);
     }
 
+    public void analyseData(int tick, List<User> users) throws IOException {
+        double delayAverage = 0.0;
+        int nbPacketsSent = 0;
+        for(User u: users){
+            List<Packets> packets = u.getPacketsSent();
+            nbPacketsSent += packets.size();
+            for (Packets p: packets){
+                delayAverage += p.getDurationSending();
+            }
+        }
+        delayAverage = delayAverage/nbPacketsSent;
+        for(int i = 0; i < frame.length; i++) {
+            for(int j = 0; j < frame[i].length; j++) {
+                ResourceBlock ur = frame[i][j];
+                if(ur.getUser() != null) {
+                    String data = (tick + ";" + i + ";" + j + ";" + this.users.indexOf(ur.getUser()) + ";" + ur.getBandwidth() + ";" + delayAverage +";\n");
+                    try{
+                        outputDataFile.write(data.getBytes());
+                    }catch(IOException e){
+                        System.err.println("Cannot write the data in the output file");
+                        System.exit(1);
+                        return;
+                    }
+                }
+            }
+        }
+    }
+
     public ResourceBlock[][] getFrame() {
         return frame;
     }
diff --git a/src/main/java/fr/ntr/Main.java b/src/main/java/fr/ntr/Main.java
index a6a6c32..9d9631f 100644
--- a/src/main/java/fr/ntr/Main.java
+++ b/src/main/java/fr/ntr/Main.java
@@ -59,8 +59,8 @@ public class Main {
                     Scheduler schedulerCell1 = new RoundRobin(frame, users);
                     Scheduler schedulerCell2 = new RoundRobin(frame, users);
 
-                    Cell cell1 = new Cell(schedulerCell1, frame, users);
-                    Cell cell2 = new Cell(schedulerCell2, frame, users);
+                    Cell cell1 = new Cell(schedulerCell1, frame, users, "export" + File.separator + users.size() + "_cell1" + ".csv");
+                    Cell cell2 = new Cell(schedulerCell2, frame, users, "export" + File.separator + users.size() + "_cell2" + ".csv");
                     AccessPoint accessPoint = new AccessPoint(cell1, cell2);
                     executor.submit(() -> accessPoint.startSimulation(numberOfTicks, users));
                 }