Achim Freimann Probabilistic Power Estimation for Digital Signal Processing Architectures. 458-467 2002 conf/patmos/2002 PATMOS http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2451&spage=0458 db/conf/patmos/patmos2002.html#Freimann02