Dropped SSH connections.

At my school we have this lab of Windows XP boxes, and sometimes I want to
login to my home debian box with linux. So, I often boot with my BBC and
connect just fine. The problem I am having is that the connection gets
dropped at the most inoppurtune times. I think that the problem is that we
have a microwave internet connection here at school and it is sometimes
unreliable (dropped packets, etc.) Is there any way of keeping up a SSH
connection over a network that sucks?