[1] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA
[2] Virginia Elect & Power Co Dba Dominion Virginia P, Richmond, VA 23219 USA
[3] Virginia Polytech Inst & State Univ, Virginia Bioinformat Inst, Network Dynam & Simulat Sci Lab, Blacksburg, VA 24061 USA