Any MAC yet implement that contains the features of Underwater Sensor node ???

[Abir Hossain]

Dear
I browse a MAC that contains the total feature of underwater sensor node.According to Robert martin A aqua-sim node should have the following property.
1.Aqua-sim routing
2.Aqua-sim MAC
3.Aqua-sim phy
4.Aqua-sim channel.

i am in search of such a MAC sample code that helps me to understand the MAC implementation  in UWSN.

Thanks