IEEE SIGNAL PROCESSING MAGAZINE [Volume 30 Number 3 maY 2013] AdAPtAtION ANd LEARNING OVER COMPLEx NEtwORkS VOLuME 30 NuMbER 3 MAY 2013 30msp03-cover1-2246693.indd 1 www.signalprocessingsociety.org [34] MAY 2013 19/03/13 1:17 PMhttp://www.signalprocessingsociety.org