Help For Quick Start TCP Implementation in ns 2.31 / ns 2.34

Hopefully, there will not be a easy solution for your problem.

But, “A Linux TCP implementation for NS2” is providing easy way to integrate linux implementations of tcp along with ns2.
http://netlab.caltech.edu/projects/ns2tcplinux/ns2linux/index.html

Even you can easily add your own algorithm in a simple way.

Higher versions of ns2 contains tcplinux by default.

You may try that also.