A Discrete-Event Network Simulator
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1 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
2 /*
3  * Copyright (c) 2020 Orange Labs
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15  * along with this program; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  *
18  * Authors: Rediet <getachew.redieteab@orange.com>
19  * S├ębastien Deronne <sebastien.deronne@gmail.com> (for logic ported from wifi-phy)
20  * Mathieu Lacage <mathieu.lacage@sophia.inria.fr> (for logic ported from wifi-phy)
21  */
23 #ifndef DSSS_PHY_H
24 #define DSSS_PHY_H
26 #include "ns3/phy-entity.h"
27 #include <vector>
35 namespace ns3 {
45 class DsssPhy : public PhyEntity
46 {
47 public:
51  DsssPhy ();
55  virtual ~DsssPhy ();
57  WifiMode GetSigMode (WifiPpduField field, const WifiTxVector& txVector) const override;
58  const PpduFormats & GetPpduFormats (void) const override;
59  Time GetDuration (WifiPpduField field, const WifiTxVector& txVector) const override;
60  Time GetPayloadDuration (uint32_t size, const WifiTxVector& txVector, WifiPhyBand band, MpduType mpdutype,
61  bool incFlag, uint32_t &totalAmpduSize, double &totalAmpduNumSymbols,
62  uint16_t staId) const override;
63  Ptr<WifiPpdu> BuildPpdu (const WifiConstPsduMap & psdus, const WifiTxVector& txVector, Time ppduDuration) override;
64  uint32_t GetMaxPsduSize (void) const override;
69  static void InitializeModes (void);
77  static WifiMode GetDsssRate (uint64_t rate);
83  static WifiMode GetDsssRate1Mbps (void);
89  static WifiMode GetDsssRate2Mbps (void);
95  static WifiMode GetDsssRate5_5Mbps (void);
101  static WifiMode GetDsssRate11Mbps (void);
111  static WifiCodeRate GetCodeRate (const std::string& name);
120  static uint16_t GetConstellationSize (const std::string& name);
131  static uint64_t GetDataRateFromTxVector (const WifiTxVector& txVector, uint16_t staId);
145  static uint64_t GetDataRate (const std::string& name, WifiModulationClass modClass, uint16_t channelWidth, uint16_t guardInterval, uint8_t nss);
155  static bool IsModeAllowed (uint16_t channelWidth, uint8_t nss);
157 private:
159  Ptr<SpectrumValue> GetTxPowerSpectralDensity (double txPowerW, Ptr<const WifiPpdu> ppdu) const override;
160  uint16_t GetRxChannelWidth (const WifiTxVector& txVector) const override;
166  WifiMode GetHeaderMode (const WifiTxVector& txVector) const;
174  Time GetPreambleDuration (const WifiTxVector& txVector) const;
179  Time GetHeaderDuration (const WifiTxVector& txVector) const;
199  static WifiMode CreateDsssMode (std::string uniqueName, WifiModulationClass modClass);
204 }; //class DsssPhy
206 } //namespace ns3
208 #endif /* DSSS_PHY_H */
This enumeration defines the modulation classes per (Table 10-6 "Modulation classes"; IEEE 802...
Simulation virtual time values and global simulation resolution.
Definition: nstime.h:103
Smart pointer class similar to boost::intrusive_ptr.
Definition: ptr.h:73
This class mimics the TXVECTOR which is to be passed to the PHY in order to define the parameters whi...
Constructor for HR/DSSS PHY.
Definition: dsss-phy.cc:72
PHY entity for HR/DSSS (11b)Refer to IEEE 802.11-2016, clause 16 (HR/DSSS).
Definition: dsss-phy.h:45
uint16_t GetRxChannelWidth(const WifiTxVector &txVector) const override
Return the channel width used in the reception spectrum model.
Definition: dsss-phy.cc:224
static void InitializeModes(void)
Initialize all HR/DSSS modes.
Definition: dsss-phy.cc:252
static bool IsModeAllowed(uint16_t channelWidth, uint8_t nss)
Check whether the combination of <WifiMode, channel width, NSS> is allowed.
Definition: dsss-phy.cc:360
static WifiMode GetDsssRate5_5Mbps(void)
Return a WifiMode for HR/DSSS at 5.5 Mbps.
Time GetDuration(WifiPpduField field, const WifiTxVector &txVector) const override
Get the duration of the PPDU field (or group of fields) used by this entity for the given transmissio...
Definition: dsss-phy.cc:124
static uint16_t GetConstellationSize(const std::string &name)
Return the constellation size from the DSSS or HR/DSSS mode&#39;s unique name using ModulationLookupTable...
Definition: dsss-phy.cc:323
WifiMode GetHeaderMode(const WifiTxVector &txVector) const
Definition: dsss-phy.cc:102
represent a single transmission modeA WifiMode is implemented by a single integer which is used to lo...
Definition: wifi-mode.h:47
std::map< std::string, CodeRateConstellationSizePair > ModulationLookupTable
A modulation lookup table using unique name of modulation as key.
Definition: phy-entity.h:487
static WifiMode GetDsssRate11Mbps(void)
Return a WifiMode for HR/DSSS at 11 Mbps.
Time GetHeaderDuration(const WifiTxVector &txVector) const
Definition: dsss-phy.cc:157
The type of an MPDU.
PhyFieldRxStatus DoEndReceiveField(WifiPpduField field, Ptr< Event > event) override
End receiving a given field, perform amendment-specific actions, and provide the status of the recept...
Definition: dsss-phy.cc:189
Status of the reception of the PPDU field.
Definition: phy-entity.h:110
Time GetPayloadDuration(uint32_t size, const WifiTxVector &txVector, WifiPhyBand band, MpduType mpdutype, bool incFlag, uint32_t &totalAmpduSize, double &totalAmpduNumSymbols, uint16_t staId) const override
Definition: dsss-phy.cc:173
static uint64_t GetDataRate(const std::string &name, WifiModulationClass modClass, uint16_t channelWidth, uint16_t guardInterval, uint8_t nss)
Return the data rate from the DSSS or HR/DSSS mode&#39;s unique name and the supplied parameters...
Definition: dsss-phy.cc:338
The type of PPDU field (grouped for convenience)
WifiMode GetSigMode(WifiPpduField field, const WifiTxVector &txVector) const override
Get the WifiMode for the SIG field specified by the PPDU field.
Definition: dsss-phy.cc:89
PhyFieldRxStatus EndReceiveHeader(Ptr< Event > event)
End receiving the header, perform DSSS-specific actions, and provide the status of the reception...
Definition: dsss-phy.cc:200
Abstract class for PHY entitiesThis class enables to have a unique set of APIs to be used by each PHY...
Definition: phy-entity.h:93
const PpduFormats & GetPpduFormats(void) const override
Return the PPDU formats of the PHY.
Definition: dsss-phy.cc:118
uint16_t WifiCodeRate
These constants define the various convolutional coding rates used for the OFDM transmission modes in...
Every class exported by the ns3 library is enclosed in the ns3 namespace.
Ptr< SpectrumValue > GetTxPowerSpectralDensity(double txPowerW, Ptr< const WifiPpdu > ppdu) const override
Definition: dsss-phy.cc:240
static WifiMode GetDsssRate(uint64_t rate)
Return a WifiMode for HR/DSSS corresponding to the provided rate.
Definition: dsss-phy.cc:261
Time GetPreambleDuration(const WifiTxVector &txVector) const
Definition: dsss-phy.cc:141
static WifiCodeRate GetCodeRate(const std::string &name)
Return the WifiCodeRate from the DSSS or HR/DSSS mode&#39;s unique name using ModulationLookupTable.
Definition: dsss-phy.cc:317
static const ModulationLookupTable m_dsssModulationLookupTable
lookup table to retrieve code rate and constellation size corresponding to a unique name of modulatio...
Definition: dsss-phy.h:203
Identifies the PHY band.
Definition: wifi-phy-band.h:32
static uint64_t GetDataRateFromTxVector(const WifiTxVector &txVector, uint16_t staId)
Return the data rate corresponding to the supplied TXVECTOR.
Definition: dsss-phy.cc:329
static WifiMode GetDsssRate1Mbps(void)
Return a WifiMode for DSSS at 1 Mbps.
static WifiMode CreateDsssMode(std::string uniqueName, WifiModulationClass modClass)
Create a DSSS or HR/DSSS mode from a unique name, the unique name must already be contained inside Mo...
Definition: dsss-phy.cc:296
std::map< WifiPreamble, std::vector< WifiPpduField > > PpduFormats
A map of PPDU field elements per preamble type.
Definition: phy-entity.h:477
static const PpduFormats m_dsssPpduFormats
DSSS and HR/DSSS PPDU formats.
Definition: dsss-phy.h:201
uint32_t GetMaxPsduSize(void) const override
Get the maximum PSDU size in bytes.
Definition: dsss-phy.cc:366
static WifiMode GetDsssRate2Mbps(void)
Return a WifiMode for DSSS at 2 Mbps.
virtual ~DsssPhy()
Destructor for HR/DSSS PHY.
Definition: dsss-phy.cc:83
std::unordered_map< uint16_t, Ptr< const WifiPsdu > > WifiConstPsduMap
Map of const PSDUs indexed by STA-ID.
Ptr< WifiPpdu > BuildPpdu(const WifiConstPsduMap &psdus, const WifiTxVector &txVector, Time ppduDuration) override
Build amendment-specific PPDU.
Definition: dsss-phy.cc:181