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/* -*- Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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* Copyright (c) 2010 TELEMATICS LAB, DEE - Politecnico di Bari
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation;
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*
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* Author: Giuseppe Piro <g.piro@poliba.it>
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*/
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#ifndef LTE_SPECTRUM_VALUE_HELPER_H
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#define LTE_SPECTRUM_VALUE_HELPER_H
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#include <ns3/spectrum-value.h>
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#include <vector>
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namespace ns3 {
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/**
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* \brief This class defines all functions to create spectrum model for lte
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*/
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class LteSpectrumValueHelper
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{
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public:
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/**
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* Calculates the carrier frequency from the E-UTRA Absolute
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* Radio Frequency Channel Number (EARFCN) according to 3GPP TS
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* 36.101 section 5.7.3 "Carrier frequency and EARFCN".
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*
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* \param earfcn the EARFCN
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*
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* \return the carrier frequency in MHz
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*/
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static double GetCarrierFrequency (uint16_t earfcn);
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/**
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* Calculates the dowlink carrier frequency from the E-UTRA Absolute
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* Radio Frequency Channel Number (EARFCN) using the formula in 3GPP TS
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* 36.101 section 5.7.3 "Carrier frequency and EARFCN".
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*
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* \param earfcn the EARFCN
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*
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* \return the dowlink carrier frequency in MHz
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*/
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static double GetDownlinkCarrierFrequency (uint16_t earfcn);
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/**
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* Calculates the uplink carrier frequency from the E-UTRA Absolute
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* Radio Frequency Channel Number (EARFCN) using the formula in 3GPP TS
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* 36.101 section 5.7.3 "Carrier frequency and EARFCN".
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*
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* \param earfcn the EARFCN
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*
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* \return the uplink carrier frequency in MHz
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*/
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static double GetUplinkCarrierFrequency (uint16_t earfcn);
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/**
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* \brief create spectrum value
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* \param powerTx the power transmission in dBm
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* \param channels the list of sub channels where the signal will be sent
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* \return a Ptr to a newly created SpectrumValue instance
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*/
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static Ptr<SpectrumValue> CreateDownlinkTxPowerSpectralDensity (double powerTx, std::vector <int> channels);
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/**
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* \brief create spectrum value
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* \param powerTx the power transmission in dBm
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* \param channels the list of sub channels where the signal will be sent
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* \return a Ptr to a newly created SpectrumValue instance
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*/
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static Ptr<SpectrumValue> CreateUplinkTxPowerSpectralDensity (double powerTx, std::vector <int> channels);
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/**
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* create a SpectrumValue that models the power spectral density of AWGN
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*
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* \param noiseFigure the noise figure in dB w.r.t. a reference temperature of 290K
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*
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* \return a Ptr to a newly created SpectrumValue instance
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*/
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static Ptr<SpectrumValue> CreateDownlinkNoisePowerSpectralDensity (double noiseFigure);
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/**
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* create a SpectrumValue that models the power spectral density of AWGN
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*
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* \param noiseFigure the noise figure in dB w.r.t. a reference temperature of 290K
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*
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* \return a Ptr to a newly created SpectrumValue instance
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*/
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static Ptr<SpectrumValue> CreateUplinkNoisePowerSpectralDensity (double noiseFigure);
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/**
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* create a SpectrumValue that models the power spectral density of AWGN
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*
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* \param noiseFigure the noise figure in dB w.r.t. a reference temperature of 290K
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* \param spectrumModel the SpectrumModel instance to be used
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*
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* \return a Ptr to a newly created SpectrumValue instance
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*/
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static Ptr<SpectrumValue> CreateNoisePowerSpectralDensity (double noiseFigure, Ptr<SpectrumModel> spectrumModel);
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};
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} // namespace ns3
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#endif /* LTE_SPECTRUM_VALUE_HELPER_H */
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