Index: src/devices/lte/lte-spectrum-value-helper.cc |
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+/* -*- 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> |
+ */ |
+ |
+ |
+#include "lte-spectrum-value-helper.h" |
+#include <cmath> |
+ |
+namespace ns3 { |
+ |
+Ptr<SpectrumModel> LteSpectrumModel; |
Nicola Baldo
2010/08/04 12:40:38
There is still a single LteSpectrumModel used both
GiuseppePiro
2010/08/06 14:09:47
Done.
|
+ |
+ |
+ |
+class static_LteSpectrumModel_initializer |
+{ |
+public: |
+ static_LteSpectrumModel_initializer () |
+ { |
+ |
+ std::vector<double> freqs; |
+ for (int i = 0; i < 100; ++i) |
+ { |
+ |
+ double centralFrequencyOfPRB = 1.99109 + (i * 0.00018); |
+ freqs.push_back (centralFrequencyOfPRB * 1e9); |
Nicola Baldo
2010/08/04 12:40:38
You have exactly the same code in lte-spectrum-mod
GiuseppePiro
2010/08/06 14:09:47
Done.
|
+ } |
+ |
+ LteSpectrumModel = Create<SpectrumModel> (freqs); |
+ } |
+ |
+} static_LteSpectrumModel_initializer_instance; |
+ |
+ |
+ |
+ |
+ |
+Ptr<SpectrumValue> |
+LteSpectrumValueHelper::CreateTxPowerSpectralDensity (double powerTx, std::vector<int> channels) |
+{ |
+ Ptr<SpectrumValue> txPsd = Create <SpectrumValue> (LteSpectrumModel); |
+ |
+ // powerTx is expressed in dBm. We must convert it into natural unit. |
+ powerTx = pow(10., (powerTx - 30)/10); |
+ |
+ double txPowerDensity = (powerTx / channels.size ()) / 180000; |
+ |
+ for (std::vector <int>::iterator it = channels.begin (); it != channels.end (); it++) |
+ { |
+ int idSubChannel = (*it); |
+ (*txPsd)[idSubChannel] = txPowerDensity; |
+ } |
+ |
+ return txPsd; |
+} |
+ |
+ |
+Ptr<SpectrumValue> |
+LteSpectrumValueHelper::CreateNoisePowerSpectralDensity (void) |
+{ |
+ Ptr<SpectrumValue> txPsd = Create <SpectrumValue> (LteSpectrumModel); |
+ |
+ double noise_db = 2.5 + (-174) + (10.*log10(180000)) - 30; |
+ double noisePowerDensity = (pow(10.,noise_db/10)) / 180000; |
+ |
+ (*txPsd) = noisePowerDensity; |
+ |
+ return txPsd; |
+} |
+ |
+} //namespace ns3 |