Copyright 2009 IEEE. Personal use of this material is
permitted. However, permission to reprint/republish this material for
advertising or promotional purposes or for creating new collective
works for resale or redistribution to servers or lists, or to reuse
any copyrighted component of this work in other works, must be obtained
from the IEEE.
Contact:
Manager, Copyrights and Permissions
IEEE Service Center
445 Hoes Lane
P.O. Box 1331
Piscataway, NJ 08855-1331
U.S.A.
Telephone: + Intl. 908-562-3966
Li Shang participated on this project but an error during submission
left him off the author list. It was against conference policy to later add
him to the list. The version of the paper available here is identical to the
official published version with one exception; it contains a note indicating
that Li Shang also contributed to the work. Get the
PDF.