  In this paper, we propose a structured peer-to-peer (P2P) distribution scheme
based on Fast Fourier Transform (FFT) graphs. We build a peer-to-peer network
that reproduces the FFT graph initially designed for hardware FFT codecs. This
topology allows content delivery with a maximum diversity level for a minimum
global complexity. The resulting FFTbased network is a structured architecture
with an adapted network coding that brings flexibility upon content
distribution and robustness upon the dynamic nature of the network. This
structure can achieve optimal capacity in terms of content recovery while
solving the problem of last remaining blocks, even for large networks.
