In which application? Do you ask about the simulator NS2 for example?

If you are using Castalia for your AODV protocol  this can easily be modified in .cc file.

If you are using NS2, take a look at this tuorial http://arxiv.org/pdf/1007.4065.pdf

Thanks..

I am using NS2 simulator. In hello list i want to use 4 fields as node id, hop count, received power and annulus number(area of sensor location) which depend on hop count . So without transmitting HELLO packet at periodic intervals from every node, the node which receives hello packet compare its hop count with received packet hop count and if its count is less then its allow to transmit the hello packet to its transmission range. so how can i modify the hello list in AODV ?

You only need to include the fields in the header

File ns2 / aodv / aodv_packet.h

The hello protocol uses RREP messages, you only need to modify this struct

struct hdr_aodv_reply {

u_int8_t rp_type; // Packet Type

u_int8_t reserved[2];

u_int8_t rp_hop_count; // Hop Count

nsaddr_t rp_dst; // Destination IP Address

u_int32_t rp_dst_seqno; // Destination Sequence Number

nsaddr_t rp_src; // Source IP Address

double rp_lifetime; // Lifetime

double rp_timestamp; // when corresponding REQ sent;

// used to compute route discovery latency

inline int size() {

int sz = 0;

/*

sz = sizeof(u_int8_t) // rp_type

+ 2*sizeof(u_int8_t) // rp_flags + reserved

+ sizeof(u_int8_t) // rp_hop_count

+ sizeof(double) // rp_timestamp

+ sizeof(nsaddr_t) // rp_dst

+ sizeof(u_int32_t) // rp_dst_seqno

+ sizeof(nsaddr_t) // rp_src

+ sizeof(u_int32_t); // rp_lifetime

*/

sz = 6*sizeof(u_int32_t);

assert (sz >= 0);

return sz;

}

};

and of course, the method AODV::sendHello

Thank you sir.

hello evrybody,

i'm working in Castalia and i want to obtain the number of neighbor each node for each round. Can you help me please

you need to implement a hello protocol, a protocol that sends hello messages periodically, there is an aodv implementation for castalia

http://sourceforge.net/projects/aodvcastalia/

You can use the hello protocol implemened for aodv

I am working in PMIPv6 protocol in ns2.29  and I need help how I can implement a hello message for PMIPv6 in ns2.

Thank you in advance  

I don't know the implementation of PMIPv6, but the hello protocol is a periodic task that sends a frame in a predefined interval using the broadcast/multicast address.

How can I implement a neghibor discovery protocol in AODV using ns 2.35 ?

It depends which simulator are you using. If you use castalia and omint, this could easily be done just by modifying the protocol.

I use ns 2.35

what about that?