--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/wifi/helper/ht-wifi-mac-helper.cc	Tue Aug 13 22:05:25 2013 -0700
@@ -0,0 +1,55 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2009 MIRKO BANCHI
+ *
+ * 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: Ghada Badawy <gbadawy@gmail.com>
+ */
+#include "ht-wifi-mac-helper.h"
+#include "ns3/wifi-mac.h"
+#include "ns3/edca-txop-n.h"
+#include "ns3/pointer.h"
+#include "ns3/boolean.h"
+#include "ns3/uinteger.h"
+
+namespace ns3 {
+
+HtWifiMacHelper::HtWifiMacHelper ()
+{
+}
+
+HtWifiMacHelper::~HtWifiMacHelper ()
+{
+}
+
+HtWifiMacHelper
+HtWifiMacHelper::Default (void)
+{
+  HtWifiMacHelper helper;
+
+  // We're making Ht-enabled Wi-Fi MACs here, so we set the necessary
+  // attribute. I've carefully positioned this here so that someone
+  // who knows what they're doing can override with explicit
+  // attributes.
+  helper.SetType ("ns3::StaWifiMac",
+                  "QosSupported", BooleanValue (true),
+                  "HtSupported", BooleanValue (true));
+
+  return helper;
+}
+
+
+} // namespace ns3
+