diff --git a/plot/main.py b/plot/main.py
index 0c0c740..eaa30b6 100644
--- a/plot/main.py
+++ b/plot/main.py
@@ -33,16 +33,8 @@ def rb_available() -> np.ndarray:
         data = pd.read_csv(".." + os.sep + "export" + os.sep + i, delimiter=';').to_numpy()
         nb_users = i.split(".")[0]
         available[nb, 0] = int(nb_users)
-        available[nb, 1] = data.shape[0] / (200 * 10000)
+        available[nb, 1] = (data.shape[0] / (200 * 10000)) * 100
         nb += 1
-
-        """for j in range(0, 2):
-            for k in range(0, 10000):
-                nb_users = i.split(".")[0]
-                available[nb, 0] = int(nb_users)
-                if j == data[nb, 1] and k == data[:, 2]:
-                    available[nb, 1] += 1
-        """
     return available
 
 
diff --git a/src/main/java/fr/ntr/Main.java b/src/main/java/fr/ntr/Main.java
index c6a9662..cccfd09 100644
--- a/src/main/java/fr/ntr/Main.java
+++ b/src/main/java/fr/ntr/Main.java
@@ -26,11 +26,12 @@ public class Main {
             }
             int timeSlotNb = 2;
             int subCarrierNb = 100;
-            for(int i = 2; i < maximumLoad; i+=2) {
+            for(int i = 2; i <= maximumLoad; i += 2) {
                 List<User> users = generateUsers(i, timeSlotNb, subCarrierNb);
                 ResourceBlock[][] frame = new ResourceBlock[timeSlotNb][subCarrierNb];
                 //Scheduler scheduler = new MaxSNR(frame, users);
-                Scheduler scheduler = new ProportionalFair(frame, users);
+                // Scheduler scheduler = new ProportionalFair(frame, users);
+                Scheduler scheduler = new RoundRobin(frame, users);
                 AccessPoint accessPoint = new AccessPoint(scheduler, frame, users, timeSlotNb, subCarrierNb, 0, 50);
                 accessPoint.startSimulation(numberOfTicks);
             }
diff --git a/src/main/java/fr/ntr/scheduler/MaxSNR.java b/src/main/java/fr/ntr/scheduler/MaxSNR.java
index d39a3ad..809cd99 100644
--- a/src/main/java/fr/ntr/scheduler/MaxSNR.java
+++ b/src/main/java/fr/ntr/scheduler/MaxSNR.java
@@ -19,21 +19,25 @@ public class MaxSNR extends Scheduler {
 
 	@Override
 	public void scheduling(int ticks) {
-		User userMax = null;
+		User userMax;
 		for(int ts = 0; ts < 2; ts++){
 			for(int sp = 0; sp < 100; sp++){
-				userMax = userSelection(ts, sp, users);
+				userMax = userSelection(ts, sp);
 				allocateRessource(userMax, frame, ts, sp, ticks);
 			}
 		}
-	} 
-	
-	private User userSelection(int ts, int sp, List<User> Users) {
-		double MaxSnr = 0.0;
+	}
+
+	/**
+	 * Sélectionne le prochain utilisateur en fonction du contexte
+	 * @return the user with the best bandwidth
+	 */
+	private User userSelection(int ts, int sp) {
+		double maxSnr = 0.0;
 		User userMax = null;
-		for(User u: Users){
-			if (MaxSnr < u.getBandwidthTable()[ts][sp]){
-				MaxSnr = u.getBandwidthTable()[ts][sp];
+		for(User u: users){
+			if (maxSnr < u.getBandwidthTable()[ts][sp]) {
+				maxSnr = u.getBandwidthTable()[ts][sp];
 				userMax = u;
 			}
 		}
diff --git a/src/main/java/fr/ntr/scheduler/RoundRobin.java b/src/main/java/fr/ntr/scheduler/RoundRobin.java
index be32af5..91d916c 100644
--- a/src/main/java/fr/ntr/scheduler/RoundRobin.java
+++ b/src/main/java/fr/ntr/scheduler/RoundRobin.java
@@ -9,17 +9,17 @@ import fr.ntr.User;
 
 public class RoundRobin extends Scheduler {
 
-	private String name;
+	private final Random random;
 	private int index;
 
-	private List<User> users;
-	private ResourceBlock[][] frame;
+	private final List<User> users;
+	private final ResourceBlock[][] frame;
 
-	public RoundRobin(String name, int index, ResourceBlock[][] frame, List<User> users) {
-		this.name = name;
-		this.index = index;
+	public RoundRobin(ResourceBlock[][] frame, List<User> users) {
+		this.index = 0;
 		this.frame = frame;
 		this.users = users;
+		this.random = new Random();
 	}
 
 	/**
@@ -29,14 +29,14 @@ public class RoundRobin extends Scheduler {
 	 */
 	@Override
 	public void scheduling(int ticks) {
-		//selection aleatoire du premier utilisateur
-		Random random = new Random();
-		index =  random.nextInt(users.size());
+		//selection aléatoire du premier utilisateur
+
+		index = random.nextInt(users.size());
 
 		//Pour chaque time slot et sous porteuses
 		for (int ts = 0; ts < AccessPoint.getTimeSlotNb(); ts++) {
 			for(int sp = 0; sp < AccessPoint.getSubCarrierNb(); sp++) {
-				User userSelected = userSelection(ts, sp, users);
+				User userSelected = userSelection();
 				allocateRessource(userSelected, frame, ts, sp, ticks);
 			}
 		}
@@ -45,16 +45,17 @@ public class RoundRobin extends Scheduler {
 	/**
 	 * Entry Time slot (int), Sous porteuse(int), and users ( List<User>)
 	 * Return the user in function of TS and SP selected
+	 *
+	 * @return the next user which have something to send, null otherwise
 	 */
-	private User userSelection(int ts, int sp, List<User> users) {
-		//compte le nombre de bloc attribue
-		for (int i = 0; i < ts; i++){
-			for (int j = 0; j < sp; j++) {
-				index++;
+	private User userSelection() {
+		for(int i = index; i < index + users.size(); i++) {
+			User user = users.get(index % (users.size()));
+			if(!user.getPacketsToSend().isEmpty()) {
+				index = i;
+				return user;
 			}
 		}
-		//on retourne l'utilisateur
-		return users.get(index%(users.size() - 1));
-
+		return null;
 	}
 }