Custom Congestion Control Algorithm

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Mohammed Afifi

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Apr 17, 2023, 8:10:15 AM4/17/23

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Hi All,

I'm trying to implement a new congestion control algorithm, which use methods provided in TcpSocketBase such as:

EstimateRtt (const TcpHeader &tcpHeader)
NewAck (const SequenceNumber32 &seq, bool resetRTO)
ReceivedAck (Ptr< Packet > packet, const TcpHeader &tcpHeader)
ReTxTimeout ()
SendDataPacket (SequenceNumber32 seq, uint32_t maxSize, bool withAck)
SendPendingData (bool withAck=false)

ByBBy just implementing TcpCongestionOps, I can't have access to these methods. One solution is to extend TcpSocketBase and then select the new implementation. But I tried to select it using config::set and the following:

"/NodeList/[i]/$ns3::TcpL4Protocol/SocketList/[i]"

// Create a new instance of MyTcpSocketBase MyTcpSocketBase mySocket; // Set the MyTcpSocketBase factory for TcpSocketBase using Config::Set std::string path = "/NodeList/[i]/$ns3::TcpL4Protocol/SocketList/[i]/$ns3::TcpSocketBase"; ObjectVectorValue tcpSocketBaseValue; tcpSocketBaseValue.Set(InternalSocketFactory<MyTcpSocketBase>::GetTypeId()); Config::Set(path, tcpSocketBaseValue);