June 8, 2016; accepted June 8, 2016. Date of publication July 7, 2016; date
of current version September 1, 2016. This paper was approved by Associate
Editor Hideto Hidaka.
A. Boukhayma is with the Ecole Polytechnique Federale de Lausanne
(EPFL), ICLAB, Neuchatel, Switzerland, and also with the CEA-LETI
Minatech, Grenoble, France (e-mail: assim.boukhayma@epfl.ch).
A. Peizerat is with CEA-LETI Minatech, Grenoble, France.
C. Enz is with EPFL, Lausanne, Switzerland.
Color versions of one or more of the figures in this paper are available
online at http://ieeexplore.ieee.org.
Digital Object Identifier 10.1109/JSSC.2016.2579643