XML : Need advice on queuing files for transfer to a server and account for an intermittant mobile connection

All:

I've searched the archives here and can't seem to find a scenario that deals with my situation. Any help or direction would be greatly appreciated.

I have a C# console application that monitors a system folder for changes to XML files, then copies the file to a 'queue' folder for transfer to my server. The issue I have is that this is a public safety application which will be installed on Panasonic Toughbooks, which use a mobile connection and I have to account for the potential for connection loss.

Programmatically, what type of connection should I use to transfer the files, and what safeguards/processes are best for dealing with the potential for loss of connectivity?

My server is Windows Server 2012 R2 w/ IIS and the files are being transferred to a SQL database. None of the files will be over 100K.

If you need any more information, please let me know. Again, I REALLY appreciate any feedback.

Scott