Green Mobile Devices and Networks

Chapter 1

Energy Management for Location-Based Services on Mobile Devices

Mikkel Baun Kjærgaard

Contents

1.1 Introduction

1.2 Power Consumption and Location-Based Services

1.3 Profiling and Modeling the Power Consumption of Mobile Devices

1.4 Device Model

1.4.1 Example: Modeling the Nokia N95 Phone

1.5 Methods for Minimizing the Power Consumption

1.5.1 Sensor Management Strategies

1.5.1.1 Dynamic Duty Cycling

1.5.1.2 Sensor Replacement

1.5.1.3 Sensor Selection

1.5.2 Position Update Protocols

1.6 Case: EnTracked

1.6.1 System Description

1.6.2 Results ...