[ns] having problem in Link layer issues

[Shafiq Hashmi]

Hello everyone,

I am trying to modify LEACH code, which is a cluster-oriented sensor network 
protocol. It uses CDMA technique, using different code for each 
cluster-node/cluster-head-node communication and cluster-head-nodes/Base 
Station (BS) communication. In the protocol the CHs (cluster head nodes) 
communicate directly with the BS, while I am trying to let the CHs 
communicate with other CHs before reaching BS, i.e. hop-by-hop communication 
between CH-BS link.

But when I try to send the packet from one CH to the other nearest CH, other 
CH doesnot receive it. Rather it is lost somewhere in the Link Layer (ll) 
methods which are scheduled by the cluster head at one point. I could not 
figure out link layer methods, how they work, which methods they call, they 
schedule further uptarget_ and downtarget_ instances, which I could never 
trace.

Can anybody help i this regard? How to track this uptarget_ and downtarget_ 
instances defined in ll.h and ll.cc?

waiting eagerly for any help.

Thanx
Shafiq