File contrib/nic/NicCsma.ned

Contains:

• NicCsma (compound-module)

//***************************************************************************
// * file:        NicCsma.ned
// *
// * author:      Marc Loebbers
// *
// * copyright:   (C) 2004 Telecommunication Networks Group (TKN) at
// *              Technische Universitaet Berlin, Germany.
// *
// *              This program is free software; you can redistribute it
// *              and/or modify it under the terms of the GNU General Public
// *              License as published by the Free Software Foundation; either
// *              version 2 of the License, or (at your option) any later
// *              version.
// *              For further information see file COPYING
// *              in the top level directory
// ***************************************************************************
// * part of:     framework implementation developed by tkn
// **************************************************************************/

import
    "SingleChannelRadio",
    "CSMAMacLayer",
    "SnrDecider",
    "SnrEval";

//
// The CsmaNic contains a csma-like MAC layer.
// The BasicDecider is used all messages will be delivered to
// the MAC and no packets get lost
//
// This nic is intended to be used in order to test the implementation
// of the csma protocol.
//
// IMPORTANT:<br> In order to work with the ChannelControl module the snrEval
// module has to be called "snrEval" in the ned file.
//
// @see BasicLayer, BasicDecider, BasicSnrEval
// @author Marc Loebbers
//

module NicCsma
    gates:
        in: uppergateIn; // from upper layers
        out: uppergateOut; // to upper layers
	out: upperControlOut; // control connection
	
        in: radioIn; // to receive AirFrames
     submodules:
        mac: CSMAMacLayer;
            display: "p=96,87;i=block/layer";

        decider: SnrDecider;
            display: "p=106,157;i=block/process_s";

        snrEval: SnrEval;
            display: "p=96,236;i=block/wrxtx";

	radio: SingleChannelRadio
	display: "p=200,30;b=30,25";

    connections:
        radioIn --> snrEval.radioIn;
        decider.uppergateOut --> mac.lowergateIn display "m=m,50,50,75,0";
        snrEval.uppergateIn <-- mac.lowergateOut display "m=m,25,0,25,0";
        snrEval.uppergateOut --> decider.lowergateIn display "m=m,73,0,50,50";

	snrEval.upperControlOut --> mac.lowerControlIn;	
        mac.uppergateOut --> uppergateOut;

	mac.upperControlOut --> upperControlOut;
        mac.uppergateIn <-- uppergateIn;
endmodule