[ns] ARQ implementation for terrestrial links

[Ioannis Komnios]

Dear ns-users,

I am trying to conduct some experiments using TCP on transport layer
and, at the same time, some reliable link layer protocol, like ARQ.
I've been trying for days to find an ARQ implementation in ns and I
have only found HDLC implementation for satellite links. Is there any
ARQ implementation available for terrestrial links? Or any other
reliable link layer protocol already implemented in ns2?

I would be grateful if you could help me...

Thank you in advance,

Ioannis Komnios