specialist in adap- systems, compression and processing, and holds 30 US tive radio access, working with research on and stan- patents. She is an active participant in the ISO Motion dardization of future cellular technologies including Picture Expert Group (MPEG) standard and chairs the HSPA, LTE and LTE-Advanced. His previous positions ad-hoc group on MPEG-21 Scalable Video Coding. She include being an assistant professor in communication is also a senior member of IEEE, and the Technical theory at the Royal Institute of Technology, Stockholm, Committee on Multimedia Signal Processing. She has Sweden, and a visiting researcher at University of won several awards, including the Okawa Foundation California, San Diego, USA. Dr Parkvall is a senior Award and the IBM Faculty Award three times. member of IEEE and received Ericsson's Inventor of the Year award 2005. Dr. Feng Zhao is a Principal Researcher at Microsoft Research, where he manages the Networked Embedded Charles Pursell has worked in the telecommunications Computing Group. He has taught at Stanford University and data networking industry for over 20 years. He began and Ohio State University, was a Principal Scientist at his career at Bell Laboratories as a systems architect for Xerox PARC and directed PARC's sensor network PBX and data network connectivity solutions and has research effort. He serves as the founding Editor-In- worked in many positions in voice, data, and converged Chief of ACM Transactions on Sensor Networks, and has network design and support. He is currently a converged authored or co-authored over 100 technical papers and networking consultant for Avaya, Inc. books. He has received a number of awards, and his work Joy Rahman, an award-winning senior converged engi- has been featured in news media such as BBC World neering specialist, started his career at Lucent Technolo- News, BusinessWeek, and Technology Review. This page intentionally left blank Section One Section One Section One Section One Section One Section One Introduction Thi