About the Editors Franz Hlawatsch received the Dipl.-Ing., Dr. techn., and Univ.-Dozent (habilitation) degrees in elec- trical engineering/signal processing from Vienna University of Technology, Vienna, Austria, in 1983, 1988, and 1996, respectively. Since 1983, he has been with the Institute of Telecommunications, Vienna University of Technology, as an associate professor. During 1991­1992, as a recipient of an Erwin Schr odinger Fellowship, he spent a sabbatical year with the Department of Electrical Engineering, ¨ University of Rhode Island, Kingston, RI, USA. In 1999, 2000, and 2001, he held one-month visiting professor positions with INP­ENSEEIHT/T eSA (Toulouse, France) and IRCCyN (Nantes, France). He ´ (co)authored a book, a review paper that appeared in the IEEE Signal Processing Magazine, about 180 refereed or invited scientific papers and book chapters, and three patents. He coedited three books. His research interests include signal processing for wireless communications, statistical signal processing, and compressive signal processing. Prof. Hlawatsch was a Technical Program Co-Chair of EUSIPCO 2004 and has served on the technical committees of numerous international conferences. From 2003 to 2007, he served as an associate editor for the IEEE Transactions on Signal Processing. He is currently serving as an associate editor for the IEEE Transactions on Information Theory. From 2004 to 2009, he was a member of the IEEE Signal Processing for Communications Technical Committee. He is coauthor of a paper that won an IEEE Signal Processing Society Young Author Best Paper Award. Gerald Matz received the Dipl.-Ing. and Dr. techn. degrees in electrical engineering in 1994 and 2000, respectively, and the Habilitation degree for communication systems in 2004, all from Vienna