diff --git a/src/wimax/model/ul-job.cc b/src/wimax/model/ul-job.cc
index 7a04d7381..77e6e9ad1 100644
--- a/src/wimax/model/ul-job.cc
+++ b/src/wimax/model/ul-job.cc
@@ -36,7 +36,7 @@ UlJob::~UlJob()
 }
 
 SSRecord*
-UlJob::GetSsRecord()
+UlJob::GetSsRecord() const
 {
     return m_ssRecord;
 }
@@ -48,7 +48,7 @@ UlJob::SetSsRecord(SSRecord* ssRecord)
 }
 
 ServiceFlow::SchedulingType
-UlJob::GetSchedulingType()
+UlJob::GetSchedulingType() const
 {
     return m_schedulingType;
 }
@@ -60,7 +60,7 @@ UlJob::SetSchedulingType(ServiceFlow::SchedulingType schedulingType)
 }
 
 ReqType
-UlJob::GetType()
+UlJob::GetType() const
 {
     return m_type;
 }
@@ -72,7 +72,7 @@ UlJob::SetType(ReqType type)
 }
 
 ServiceFlow*
-UlJob::GetServiceFlow()
+UlJob::GetServiceFlow() const
 {
     return m_serviceFlow;
 }
@@ -84,7 +84,7 @@ UlJob::SetServiceFlow(ServiceFlow* serviceFlow)
 }
 
 Time
-UlJob::GetReleaseTime()
+UlJob::GetReleaseTime() const
 {
     return m_releaseTime;
 }
@@ -96,7 +96,7 @@ UlJob::SetReleaseTime(Time releaseTime)
 }
 
 Time
-UlJob::GetPeriod()
+UlJob::GetPeriod() const
 {
     return m_period;
 }
@@ -108,7 +108,7 @@ UlJob::SetPeriod(Time period)
 }
 
 Time
-UlJob::GetDeadline()
+UlJob::GetDeadline() const
 {
     return m_deadline;
 }
@@ -140,14 +140,7 @@ UlJob::SetSize(uint32_t size)
 bool
 operator==(const UlJob& a, const UlJob& b)
 {
-    UlJob A = a;
-    UlJob B = b;
-
-    if ((A.GetServiceFlow() == B.GetServiceFlow()) && (A.GetSsRecord() == B.GetSsRecord()))
-    {
-        return true;
-    }
-    return false;
+    return a.GetServiceFlow() == b.GetServiceFlow() && a.GetSsRecord() == b.GetSsRecord();
 }
 
 PriorityUlJob::PriorityUlJob()
@@ -167,7 +160,7 @@ PriorityUlJob::SetPriority(int priority)
 }
 
 Ptr<UlJob>
-PriorityUlJob::GetUlJob()
+PriorityUlJob::GetUlJob() const
 {
     return m_job;
 }
diff --git a/src/wimax/model/ul-job.h b/src/wimax/model/ul-job.h
index 4aabb5874..18ff65ea2 100644
--- a/src/wimax/model/ul-job.h
+++ b/src/wimax/model/ul-job.h
@@ -63,7 +63,7 @@ class UlJob : public Object
      * Get SS record
      * \returns the SS record
      */
-    SSRecord* GetSsRecord();
+    SSRecord* GetSsRecord() const;
     /**
      * Set SS record
      * \param ssRecord the SS record
@@ -73,7 +73,7 @@ class UlJob : public Object
      * Get scheduling type
      * \returns the scheduling type
      */
-    ServiceFlow::SchedulingType GetSchedulingType();
+    ServiceFlow::SchedulingType GetSchedulingType() const;
     /**
      * Set scheduling type
      * \param schedulingType the scheduling type
@@ -83,7 +83,7 @@ class UlJob : public Object
      * Get service flow
      * \returns the service flow
      */
-    ServiceFlow* GetServiceFlow();
+    ServiceFlow* GetServiceFlow() const;
     /**
      * Set service flow
      * \param serviceFlow
@@ -94,7 +94,7 @@ class UlJob : public Object
      * Get type
      * \returns the request type
      */
-    ReqType GetType();
+    ReqType GetType() const;
     /**
      * Set type
      * \param type the type
@@ -105,7 +105,7 @@ class UlJob : public Object
      * Get release time
      * \returns the release time
      */
-    Time GetReleaseTime();
+    Time GetReleaseTime() const;
     /**
      * Set release time
      * \param releaseTime the release time
@@ -116,7 +116,7 @@ class UlJob : public Object
      * Get period
      * \returns the period time
      */
-    Time GetPeriod();
+    Time GetPeriod() const;
     /**
      * Set period
      * \param period the period
@@ -127,7 +127,7 @@ class UlJob : public Object
      * Get deadline
      * \returns the deadline time
      */
-    Time GetDeadline();
+    Time GetDeadline() const;
     /**
      * Set deadline
      * \param deadline the dead line
@@ -187,7 +187,7 @@ class PriorityUlJob : public Object
      * Get UL job function
      * \returns the UL job
      */
-    Ptr<UlJob> GetUlJob();
+    Ptr<UlJob> GetUlJob() const;
     /**
      * Set UL job
      * \param job the UL job