Please see the attachments.
[url removed, login to view] is the requirements to be implemented in Matlab.
[url removed, login to view] contains 2 folders,
1) OFDM-IDMA variation in no. of user program folder contains ofdm-idma matlab coding.
2) underwater program folder contains underwater channel matlab coding.
go through the [url removed, login to view] and implement as per the requirements given.
Some coding is already provided