Curved log cabins are pretty and I have one on my design wall as we speak; may I ask why you want to paper piece it? I am doing mine with just a ruler and 1.5 in narrow strips and 2.5in wide strips and it's working up relatively quickly, IMHO paper piecing would just be more work. However if you really want to paper piece it, I would imagine you could do so. Do show us your completed project when done!!