--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/lte/model/lte-spectrum-value-helper.h	Thu Dec 02 09:03:34 2010 +0100
@@ -0,0 +1,74 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2010 TELEMATICS LAB, DEE - Politecnico di Bari
+ *
+ * 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: Giuseppe Piro  <g.piro@poliba.it>
+ */
+
+#ifndef LTE_SPECTRUM_VALUE_HELPER_H
+#define LTE_SPECTRUM_VALUE_HELPER_H
+
+
+#include <ns3/spectrum-value.h>
+#include <vector>
+
+namespace ns3 {
+
+
+/**
+ * \brief This class defines all functions to create spectrum model for lte
+ */
+class LteSpectrumValueHelper
+{
+public:
+  /**
+   * \brief create spectrum value
+   * \param powerTx the power transmission in dBm
+   * \param channels the list of sub channels where the signal will be sent
+   * \return a Ptr to a newly created SpectrumValue instance
+   */
+  Ptr<SpectrumValue> CreateDownlinkTxPowerSpectralDensity (double powerTx, std::vector <int> channels);
+
+  /**
+   * \brief create spectrum value
+   * \param powerTx the power transmission in dBm
+   * \param channels the list of sub channels where the signal will be sent
+   * \return a Ptr to a newly created SpectrumValue instance
+   */
+  Ptr<SpectrumValue> CreateUplinkTxPowerSpectralDensity (double powerTx, std::vector <int> channels);
+
+
+  /**
+   * \brief create spectrum value for noise
+   * \return a Ptr to a newly created SpectrumValue instance
+   */
+  Ptr<SpectrumValue> CreateDownlinkNoisePowerSpectralDensity (void);
+
+  /**
+   * \brief create spectrum value for noise
+   * \return a Ptr to a newly created SpectrumValue instance
+   */
+  Ptr<SpectrumValue> CreateUplinkNoisePowerSpectralDensity (void);
+
+
+};
+
+
+} // namespace ns3
+
+
+
+#endif /*  LTE_SPECTRUM_VALUE_HELPER_H */