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A Discrete-Event Network Simulator
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A Discrete-Event Network Simulator
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IEEE 802.11s (mesh) draft standard implementation. More...
Collaboration diagram for IEEE 802.11s draft:Classes | |
| class | ns3::dot11s::AirtimeLinkMetricCalculator |
| Airtime link metric calculator. More... | |
| class | ns3::dot11s::DestinationAddressUnit |
| Describes an address unit in PREQ information element See 7.3.2.96 for more details. More... | |
| class | ns3::dot11s::Dot11sMeshCapability |
| A set of values indicating whether a mesh STA is a possible candidate for mesh peering establishment (Section 8.4.2.100.8 of IEEE 802.11-2012) More... | |
| class | ns3::Dot11sStack |
| Helper class to allow easy installation of 802.11s stack. More... | |
| class | ns3::dot11s::HwmpProtocol |
| Hybrid wireless mesh protocol – a mesh routing protocol defined in IEEE 802.11-2012 standard. More... | |
| class | ns3::dot11s::HwmpProtocolMac |
| Interface MAC plugin for HWMP – 802.11s routing protocol. More... | |
| class | ns3::dot11s::HwmpRtable |
| Routing table for HWMP – 802.11s routing protocol. More... | |
| class | ns3::dot11s::HwmpTag |
| Hwmp tag implements interaction between HWMP protocol and MeshWifiMac. More... | |
| class | ns3::dot11s::IeBeaconTiming |
| See 7.3.2.89 of 802.11s draft 2.07. More... | |
| class | ns3::dot11s::IeBeaconTimingUnit |
| Information element describing one unit of beacon timing element. More... | |
| class | ns3::dot11s::IeConfiguration |
| Describes Mesh Configuration Element see 7.3.2.86 of 802.11s draft 3.0. More... | |
| class | ns3::dot11s::IePeeringProtocol |
| Mesh Peering Protocol Identifier information element Note that it does not permit to set any value besides zero (corresponding to mesh peering management protocol) More... | |
| class | ns3::dot11s::IePerr |
| See 7.3.2.98 of 802.11s draft 2.07. More... | |
| class | ns3::dot11s::IePrep |
| See 7.3.2.97 of 802.11s draft 2.07. More... | |
| class | ns3::dot11s::IePreq |
| See 7.3.2.96 of 802.11s draft 2.07. More... | |
| class | ns3::dot11s::IeRann |
| Root announcement (RANN) element. More... | |
| class | ns3::dot11s::MeshHeader |
| Mesh Control field, see Section 8.2.4.7.3 IEEE 802.11-2012. More... | |
| class | ns3::MeshHelper |
| Helper to create IEEE 802.11s mesh networks. More... | |
| class | ns3::dot11s::PeerLink |
| Peer link model for 802.11s Peer Management protocol. More... | |
| class | ns3::dot11s::PeerLinkCloseStart |
| 802.11s Peer link close management frame More... | |
| class | ns3::dot11s::PeerLinkConfirmStart |
| 802.11s Peer link confirm management frame More... | |
| class | ns3::dot11s::PeerLinkOpenStart |
| 802.11s Peer link open management frame More... | |
| class | ns3::dot11s::PeerManagementProtocol |
| 802.11s Peer Management Protocol model More... | |
| class | ns3::dot11s::PeerManagementProtocolMac |
| This is plugin to Mesh WiFi MAC, which implements the interface to dot11s peer management protocol: it takes proper frames from MAC-layer, extracts peer link management information element and mesh configuration element and passes it to main part of protocol. More... | |
Typedefs | |
| typedef std::vector< Ptr< IeBeaconTimingUnit > > | ns3::dot11s::IeBeaconTiming::NeighboursTimingUnitsList |
| This type is a list of timing elements obtained from neighbours with their beacons: More... | |
Enumerations | |
| enum | ns3::dot11s::PmpReasonCode { ns3::dot11s::REASON11S_PEERING_CANCELLED = 52 , ns3::dot11s::REASON11S_MESH_MAX_PEERS = 53 , ns3::dot11s::REASON11S_MESH_CAPABILITY_POLICY_VIOLATION = 54 , ns3::dot11s::REASON11S_MESH_CLOSE_RCVD = 55 , ns3::dot11s::REASON11S_MESH_MAX_RETRIES = 56 , ns3::dot11s::REASON11S_MESH_CONFIRM_TIMEOUT = 57 , ns3::dot11s::REASON11S_MESH_INVALID_GTK = 58 , ns3::dot11s::REASON11S_MESH_INCONSISTENT_PARAMETERS = 59 , ns3::dot11s::REASON11S_MESH_INVALID_SECURITY_CAPABILITY = 60 , ns3::dot11s::REASON11S_RESERVED = 67 } |
| Codes used by 802.11s Peer Management Protocol. More... | |
IEEE 802.11s (mesh) draft standard implementation.
Current model conforms IEEE 802.11s D3.0 draft version and includes Peer Management Protocol and HWMP (routing) Protocol implementations.
The multi-interface mesh points are supported as an extension of IEEE draft version 3.0. Note that corresponding helper creates single interface station by default.
Implementation of 802.11s draft standard consists of two main parts: Peer management protocol and HWMP - Hybrid Wireless Mesh Protocol.
The task of peer management protocol is the following: -open links detecting beacons and starting peer link finite state machine. -close peer links due to transmission failures or beacon loss.
If peer link between sender and receiver does not exist, the packet will be dropped. So, the plug-in to peer management protocol is the first in the list of ns3::MeshWifiInterfaceMacPlugin
Peer management protocol consists of three main parts:
Procedure of closing peer link is not described detailed in 802.11s draft standard, so in our model the link may be closed by:
Also Peer management protocol is responsible for beacon collision avoidance, because it keeps beacon timing elements from all neighbours. Note, that PeerManagementProtocol is not attached to MeshPointDevice as a routing protocol, but the structure is similar: the upper tier of protocol ns3::dot11s::PeerManagementProtocol and its plug-in is ns3::dot11s::PeerManagementProtocolMac.
HWMP is implemented in both modes – reactive and proactive. Also we have implemented an ability to transmit broadcast data and management frames as unicasts (see appropriate attributes). This feature turns off at a station when the number of neighbours of the station is more than a threshold.
| typedef std::vector<Ptr<IeBeaconTimingUnit> > ns3::dot11s::IeBeaconTiming::NeighboursTimingUnitsList |
This type is a list of timing elements obtained from neighbours with their beacons:
Definition at line 101 of file ie-dot11s-beacon-timing.h.
Codes used by 802.11s Peer Management Protocol.
Definition at line 35 of file ie-dot11s-peer-management.h.
1.9.1 