diff --git a/plot/main.py b/plot/main.py
index a666898..8d7118f 100644
--- a/plot/main.py
+++ b/plot/main.py
@@ -57,23 +57,17 @@ delays.sort(axis=0)
 # Data for plotting
 averages.sort(axis=0)
 
-fig, ax = plt.subplots()
-ax.scatter(averages[:, 0], averages[:, 1])
+fig, ax = plt.subplots(2, 2)
+ax[0, 0].scatter(averages[:, 0], averages[:, 1])
+ax[0, 0].set(xlabel='number of users', ylabel='Efficacité spectrale', title='Efficacité spectrale')
+ax[0, 0].grid()
 
-ax.set(xlabel='number of users', ylabel='Efficacité spectrale', title='Efficacité spectrale')
-ax.grid()
+ax[0, 1].scatter(available[:, 0], available[:, 1])
+ax[0, 1].set(xlabel='number of users', ylabel='RB utilisés', title='Pourcentage de RB utilisés')
+ax[0, 1].grid()
 
-# fig.savefig("test.png")
-plt.show()
+ax[1, 0].scatter(delays[:, 0], delays[:, 1])
+ax[1, 0].set(xlabel='number of users', ylabel='delays(ms)', title='Delay')
+ax[1, 0].grid()
 
-fig, ax = plt.subplots()
-ax.scatter(available[:, 0], available[:, 1])
-ax.set(xlabel='number of users', ylabel='RB utilisés', title='Pourcentage de RB utilisés')
-ax.grid()
-plt.show()
-
-fig, ax = plt.subplots()
-ax.scatter(delays[:, 0], delays[:, 1])
-ax.set(xlabel='number of users', ylabel='delays(ms)', title='Delay')
-ax.grid()
-plt.show()
+plt.show()
\ No newline at end of file
diff --git a/src/main/java/fr/ntr/AccessPoint.java b/src/main/java/fr/ntr/AccessPoint.java
index fb4d279..5a9e2c0 100644
--- a/src/main/java/fr/ntr/AccessPoint.java
+++ b/src/main/java/fr/ntr/AccessPoint.java
@@ -28,7 +28,7 @@ public class AccessPoint {
             cell1.schedule(ticks);
             cell2.schedule(ticks);
             //simulation des interférences
-            // computeInterference();
+            computeInterference();
             // traite les données et les enregistre dans un fichier
             try {
                 cell1.analyseData(ticks);
@@ -44,7 +44,7 @@ public class AccessPoint {
         ResourceBlock[][] frameCell1 = cell1.getFrame();
         ResourceBlock[][] frameCell2 = cell2.getFrame();
 
-        for (int k = 0; k < frameCell1.length; k++ ) {
+        for (int k = 0; k < frameCell1.length; k++) {
             for (int l = 0; l < frameCell1[k].length; l++) {
                 //interférences si les deux cellules parlent au même UE sur le même time slot
                 User user1 = frameCell1[k][l].getUser();
diff --git a/src/main/java/fr/ntr/scheduler/MaxSNR.java b/src/main/java/fr/ntr/scheduler/MaxSNR.java
index 4d240e2..d64d164 100644
--- a/src/main/java/fr/ntr/scheduler/MaxSNR.java
+++ b/src/main/java/fr/ntr/scheduler/MaxSNR.java
@@ -1,6 +1,7 @@
 package fr.ntr.scheduler;
 import java.util.List;
 
+import fr.ntr.Cell;
 import fr.ntr.ResourceBlock;
 import fr.ntr.User;
 
@@ -43,12 +44,11 @@ public class MaxSNR extends Scheduler {
 	private User userSelection(int ts, int sp) {
 		double maxSnr = 0.0;
 		User userMax = null;
-		for(User u: users){
-			if(!u.getPacketsToSend().isEmpty()) {
-				if (maxSnr < u.getBandwidthTable()[ts][sp]) {
-					maxSnr = u.getBandwidthTable()[ts][sp];
-					userMax = u;
-				}
+		for(User u: users) {
+			if (!u.getPacketsToSend().isEmpty() && (maxSnr < u.getBandwidthTable()[ts][sp])) {
+				maxSnr = u.getBandwidthTable()[ts][sp];
+				userMax = u;
+
 			}
 		}
 		return userMax;
diff --git a/src/main/java/fr/ntr/scheduler/ProportionalFair.java b/src/main/java/fr/ntr/scheduler/ProportionalFair.java
index 2d7f8bc..0f67d61 100644
--- a/src/main/java/fr/ntr/scheduler/ProportionalFair.java
+++ b/src/main/java/fr/ntr/scheduler/ProportionalFair.java
@@ -22,7 +22,7 @@ public class ProportionalFair extends Scheduler {
 
 	@Override
 	public void scheduling(int ticks) {
-		ArrayList<Double> averageBandwiths = new ArrayList<Double>();
+		ArrayList<Double> averageBandwiths = new ArrayList<>();
 		for(User u : users){
 			double avg = 0d;
 			double[][] bandwidthTable = u.getBandwidthTable();
@@ -57,5 +57,5 @@ public class ProportionalFair extends Scheduler {
 		}
 		return selectedUser;
 	}
-		
+
 }
diff --git a/src/main/java/fr/ntr/scheduler/Scheduler.java b/src/main/java/fr/ntr/scheduler/Scheduler.java
index 066d506..7dd8c45 100644
--- a/src/main/java/fr/ntr/scheduler/Scheduler.java
+++ b/src/main/java/fr/ntr/scheduler/Scheduler.java
@@ -33,18 +33,8 @@ public abstract class Scheduler {
 				}
 			}
 			Packets p = userMax.getPacketsToSend().get(userMax.getPacketsToSend().size()-1);
-			if(p.getBitsNumberRemaining() >= 0){
-				p.decreaseBitsNumberRemaining((int) userMax.getBandwidthTable()[ts][sp]);
-				if(p.getBitsNumberRemaining() <= 0) {
-					if(ticks == 0){
-						p.setDurationSending(1);
-					}else {
-						p.setDurationSending(ticks);
-					}
-					userMax.getPacketsSent().add(p);
-					userMax.getPacketsToSend().remove(p);
-				}
-			} else {
+			p.decreaseBitsNumberRemaining((int) userMax.getBandwidthTable()[ts][sp]);
+			if(p.getBitsNumberRemaining() <= 0) {
 				if(ticks == 0){
 					p.setDurationSending(1);
 				}else {