diff --git a/src/mobility/vector.cc b/src/core/vector.cc
similarity index 56%
rename from src/mobility/vector.cc
rename to src/core/vector.cc
index 32da74326..03e96ce42 100644
--- a/src/mobility/vector.cc
+++ b/src/core/vector.cc
@@ -24,23 +24,39 @@
 
 namespace ns3 {
 
-ATTRIBUTE_HELPER_CPP (Vector);
+ATTRIBUTE_HELPER_CPP (Vector3D);
+ATTRIBUTE_HELPER_CPP (Vector2D);
+  // compatibility for mobility code
+Ptr<const AttributeChecker> MakeVectorChecker (void)
+{
+  return MakeVector3DChecker ();
+}
 
 
-Vector::Vector (double _x, double _y, double _z)
+Vector3D::Vector3D (double _x, double _y, double _z)
   : x (_x),
     y (_y),
     z (_z)
 {}
 
-Vector::Vector ()
+Vector3D::Vector3D ()
   : x (0.0),
     y (0.0),
     z (0.0)
 {}
 
+Vector2D::Vector2D (double _x, double _y)
+  : x (_x),
+    y (_y)
+{}
+
+Vector2D::Vector2D ()
+  : x (0.0),
+    y (0.0)
+{}
+
 double 
-CalculateDistance (const Vector &a, const Vector &b)
+CalculateDistance (const Vector3D &a, const Vector3D &b)
 {
   double dx = b.x - a.x;
   double dy = b.y - a.y;
@@ -48,13 +64,21 @@ CalculateDistance (const Vector &a, const Vector &b)
   double distance = std::sqrt (dx * dx + dy * dy + dz * dz);
   return distance;
 }
+double 
+CalculateDistance (const Vector2D &a, const Vector2D &b)
+{
+  double dx = b.x - a.x;
+  double dy = b.y - a.y;
+  double distance = std::sqrt (dx * dx + dy * dy);
+  return distance;
+}
 
-std::ostream &operator << (std::ostream &os, const Vector &vector)
+std::ostream &operator << (std::ostream &os, const Vector3D &vector)
 {
   os << vector.x << ":" << vector.y << ":" << vector.z;
   return os;
 }
-std::istream &operator >> (std::istream &is, Vector &vector)
+std::istream &operator >> (std::istream &is, Vector3D &vector)
 {
   char c1, c2;
   is >> vector.x >> c1 >> vector.y >> c2 >> vector.z;
@@ -65,5 +89,20 @@ std::istream &operator >> (std::istream &is, Vector &vector)
     }
   return is;
 }
+std::ostream &operator << (std::ostream &os, const Vector2D &vector)
+{
+  os << vector.x << ":" << vector.y;
+  return os;
+}
+std::istream &operator >> (std::istream &is, Vector2D &vector)
+{
+  char c1;
+  is >> vector.x >> c1 >> vector.y;
+  if (c1 != ':')
+    {
+      is.setstate (std::ios_base::failbit);
+    }
+  return is;
+}
 
 } // namespace ns3
diff --git a/src/core/vector.h b/src/core/vector.h
new file mode 100644
index 000000000..434765e9e
--- /dev/null
+++ b/src/core/vector.h
@@ -0,0 +1,126 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2007 INRIA
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#ifndef NS3_VECTOR_H
+#define NS3_VECTOR_H
+
+#include "ns3/attribute.h"
+#include "ns3/attribute-helper.h"
+
+namespace ns3 {
+
+/**
+ * \brief a 3d vector
+ */
+class Vector3D
+{
+public:
+  /**
+   * \param _x x coordinate of vector
+   * \param _y y coordinate of vector
+   * \param _z z coordinate of vector
+   *
+   * Create vector (_x, _y, _z)
+   */
+  Vector3D (double _x, double _y, double _z);
+  /**
+   * Create vector (0.0, 0.0, 0.0)
+   */
+  Vector3D ();
+  /**
+   * x coordinate of vector
+   */
+  double x;
+  /**
+   * y coordinate of vector
+   */
+  double y;
+  /**
+   * z coordinate of vector
+   */
+  double z;
+};
+
+/**
+ * \brief a 3d vector
+ */
+class Vector2D
+{
+public:
+  /**
+   * \param _x x coordinate of vector
+   * \param _y y coordinate of vector
+   *
+   * Create vector (_x, _y)
+   */
+  Vector2D (double _x, double _y);
+  /**
+   * Create vector vector (0.0, 0.0)
+   */
+  Vector2D ();
+  /**
+   * x coordinate of vector
+   */
+  double x;
+  /**
+   * y coordinate of vector
+   */
+  double y;
+};
+
+/**
+ * \param a one point
+ * \param b another point
+ * \returns the cartesian distance between a and b.
+ */
+double CalculateDistance (const Vector3D &a, const Vector3D &b);
+
+/**
+ * \param a one point
+ * \param b another point
+ * \returns the cartesian distance between a and b.
+ */
+double CalculateDistance (const Vector2D &a, const Vector2D &b);
+
+/**
+ * \class ns3::Vector3DValue
+ * \brief hold objects of type ns3::Vector3D
+ */
+/**
+ * \class ns3::Vector2DValue
+ * \brief hold objects of type ns3::Vector2D
+ */
+ATTRIBUTE_HELPER_HEADER (Vector3D);
+ATTRIBUTE_HELPER_HEADER (Vector2D);
+
+std::ostream &operator << (std::ostream &os, const Vector3D &vector);
+std::istream &operator >> (std::istream &is, Vector3D &vector);
+std::ostream &operator << (std::ostream &os, const Vector2D &vector);
+std::istream &operator >> (std::istream &is, Vector2D &vector);
+
+// for compatibility with mobility models
+typedef Vector3D Vector;
+typedef Vector3DValue VectorValue;
+typedef Vector3DChecker VectorChecker;
+ATTRIBUTE_ACCESSOR_DEFINE(Vector);
+Ptr<const AttributeChecker> MakeVectorChecker (void);
+
+} // namespace ns3
+
+#endif /* NS3_VECTOR_H */
diff --git a/src/core/wscript b/src/core/wscript
index 1c8a5de37..b75c99e8b 100644
--- a/src/core/wscript
+++ b/src/core/wscript
@@ -78,6 +78,7 @@ def build(bld):
         'config.cc',
         'callback.cc',
         'names.cc',
+        'vector.cc',
         ]
 
     headers = bld.new_task_gen('ns3header')
@@ -123,6 +124,7 @@ def build(bld):
         'deprecated.h',
         'abort.h',
         'names.h',
+        'vector.h',
         ]
 
     if sys.platform == 'win32':
diff --git a/src/mobility/constant-position-mobility-model.h b/src/mobility/constant-position-mobility-model.h
index 31aa2e978..ee9c894c7 100644
--- a/src/mobility/constant-position-mobility-model.h
+++ b/src/mobility/constant-position-mobility-model.h
@@ -21,7 +21,6 @@
 #define CONSTANT_POSITION_MOBILITY_MODEL_H
 
 #include "mobility-model.h"
-#include "vector.h"
 
 namespace ns3 {
 
diff --git a/src/mobility/constant-velocity-helper.h b/src/mobility/constant-velocity-helper.h
index 3430381e6..95346d4a1 100644
--- a/src/mobility/constant-velocity-helper.h
+++ b/src/mobility/constant-velocity-helper.h
@@ -21,7 +21,7 @@
 #define CONSTANT_VELOCITY_HELPER_H
 
 #include "ns3/nstime.h"
-#include "vector.h"
+#include "ns3/vector.h"
 
 namespace ns3 {
 
diff --git a/src/mobility/constant-velocity-mobility-model.h b/src/mobility/constant-velocity-mobility-model.h
index 6db3312ec..8936c3ad0 100644
--- a/src/mobility/constant-velocity-mobility-model.h
+++ b/src/mobility/constant-velocity-mobility-model.h
@@ -21,8 +21,8 @@
 #define CONSTANT_VELOCITY_MOBILITY_MODEL_H
 
 #include <stdint.h>
-#include "mobility-model.h"
 #include "ns3/nstime.h"
+#include "mobility-model.h"
 #include "constant-velocity-helper.h"
 
 namespace ns3 {
diff --git a/src/mobility/mobility-model.h b/src/mobility/mobility-model.h
index 1d58baf9e..6fd268c37 100644
--- a/src/mobility/mobility-model.h
+++ b/src/mobility/mobility-model.h
@@ -20,8 +20,7 @@
 #ifndef MOBILITY_MODEL_H
 #define MOBILITY_MODEL_H
 
-#include "vector.h"
-
+#include "ns3/vector.h"
 #include "ns3/object.h"
 #include "ns3/traced-callback.h"
 
diff --git a/src/mobility/position-allocator.h b/src/mobility/position-allocator.h
index e9756896c..da6f49f0b 100644
--- a/src/mobility/position-allocator.h
+++ b/src/mobility/position-allocator.h
@@ -22,7 +22,7 @@
 
 #include "ns3/object.h"
 #include "ns3/random-variable.h"
-#include "vector.h"
+#include "ns3/vector.h"
 
 namespace ns3 {
 
diff --git a/src/mobility/rectangle.cc b/src/mobility/rectangle.cc
index 6a0c5e221..ee5e29f0f 100644
--- a/src/mobility/rectangle.cc
+++ b/src/mobility/rectangle.cc
@@ -18,7 +18,7 @@
  * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
  */
 #include "rectangle.h"
-#include "vector.h"
+#include "ns3/vector.h"
 #include "ns3/assert.h"
 #include "ns3/fatal-error.h"
 #include <cmath>
diff --git a/src/mobility/rectangle.h b/src/mobility/rectangle.h
index fcc8fc1cb..90d147736 100644
--- a/src/mobility/rectangle.h
+++ b/src/mobility/rectangle.h
@@ -22,11 +22,10 @@
 
 #include "ns3/attribute.h"
 #include "ns3/attribute-helper.h"
+#include "ns3/vector.h"
 
 namespace ns3 {
 
-class Vector;
-
 /**
  * \brief a 2d rectangle
  */
diff --git a/src/mobility/vector.h b/src/mobility/vector.h
deleted file mode 100644
index e3e3191aa..000000000
--- a/src/mobility/vector.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2007 INRIA
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation;
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
- */
-#ifndef VECTOR_H
-#define VECTOR_H
-
-#include "ns3/attribute.h"
-#include "ns3/attribute-helper.h"
-
-namespace ns3 {
-
-/**
- * \brief a 3d cartesian position vector
- *
- * Unit is meters.
- */
-class Vector
-{
-public:
-  /**
-   * \param _x x coordinate of vector vector
-   * \param _y y coordinate of vector vector
-   * \param _z z coordinate of vector vector
-   *
-   * Create vector vector (_x, _y, _z)
-   */
-  Vector (double _x, double _y, double _z);
-  /**
-   * Create vector vector (0.0, 0.0, 0.0)
-   */
-  Vector ();
-  /**
-   * x coordinate of vector vector
-   */
-  double x;
-  /**
-   * y coordinate of vector vector
-   */
-  double y;
-  /**
-   * z coordinate of vector vector
-   */
-  double z;
-};
-
-/**
- * \param a one point
- * \param b another point
- * \returns the cartesian distance between a and b.
- */
-double CalculateDistance (const Vector &a, const Vector &b);
-
-/**
- * \class ns3::VectorValue
- * \brief hold objects of type ns3::Vector
- */
-
-ATTRIBUTE_HELPER_HEADER (Vector);
-
-std::ostream &operator << (std::ostream &os, const Vector &vector);
-std::istream &operator >> (std::istream &is, Vector &vector);
-
-} // namespace ns3
-
-#endif /* VECTOR_H */
diff --git a/src/mobility/wscript b/src/mobility/wscript
index ad368ebbf..6bcfd2e5c 100644
--- a/src/mobility/wscript
+++ b/src/mobility/wscript
@@ -3,7 +3,6 @@
 def build(bld):
     mobility = bld.create_ns3_module('mobility', ['core', 'simulator'])
     mobility.source = [
-        'vector.cc',
         'hierarchical-mobility-model.cc',
         'mobility-model.cc',
         'position-allocator.cc',
@@ -20,7 +19,6 @@ def build(bld):
     headers = bld.new_task_gen('ns3header')
     headers.module = 'mobility'
     headers.source = [
-        'vector.h',
         'hierarchical-mobility-model.h',
         'mobility-model.h',
         'position-allocator.h',