Adaptive Cross-Layer Multipath Routing Protocol for Mobile Ad Hoc Networks

Algorithm 1

Algorithm for generating route request and route reply.

Define App_Type, No_of _Paths;

Gen_RREQ()

If (no valid entry in route table for destination)

RREQ is created with unknown Seq_No

Else If (Have a valid destination in route table)

    RREQ is created with last Seq_No

SAVE [RREQ_ID]

Call Forward_RREQ()

Forward_RREQ()

If (Node listen a RREQ)

   If (Same as forwarded previously)

  Discard;      

                  If (Node is destination) (Node has route to destination)

  Send_RREP;

                      Discard RREQ;   

                  Else                Forward_RREQ();    

Gen_RREP

    If (App_Type == “DEFAULT”;)

    Create number of reply according to No_of _Paths;

    Destination will unicast reply to the shortest paths;

    If (App_Type == “MULTIMEDIA”;)

    Create number of reply according to No_of _Paths;

    Destination will unicast reply considering the maximum bandwidth and minimum delay;

    If (App_Type == “SECURE”;)

    Create number of reply according to No_of _Paths;

    Destination will unicast reply considering the most secure path preference wise;

Data_Transmission()

Source node will start transmission after receiving RREP

     If (RERR occur)

      Gen_RREQ();