UPDATE: PDF of the paper is here.
My paper at ICC 2009 in Dresden:
Optimization for Fractional Cooperation in Multiple-Source Multiple-Relay Systems
J. P. K. Chu, A. W. Eckford, and R. S. Adve
Monday, June 15, 10:50-12:20, Konferenz 3, third talk in the session.
I'll post the paper later this week. This work is from Josephine's thesis, where we build on our earlier work on fractional cooperation (PDFs: , ), looking now at optimization of the fractions.
I won't be in Dresden -- Ravi will be presenting the paper.