how to start to implement the following network scenario and which version will be better?

[samar.ash...@gmail.com]

Hello

 Can anyone guide me how to start and which version will be better?
Here is the project in detail.:
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1. The project need to be implemented in OMNET++ (https://omnetpp.org/) 

2. In OMNET++, create a network with the following: 

      a. mobile sevice

      b. femtocell

      c. cloud computing

3. send data from mobile device to the cloud through femtocell

4. Find out the energy consumption  for the mobile device and report