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Preface
Mobile wireless devices with monochrome screens that offer hundreds of hours of
standby time and up to a working day of talk time are primarily voice devices and
are now seen as dated. Consumers demand mobile devices with color screens, faster
processors, and more storage, often with Wireless LAN, Bluetooth, Assisted Global
Positioning System (AGPS), and broadband “ always on ” wireless connectivity. The
power challenge is even more exacerbated with the advent of high-speed packet access
(HSPA) at 10 Mbps. Applications such as games; AGPS and video conferencing make
mobile wireless devices far more power hungry ...