Optimal energy-efficient location update for mobile computing

• Main Authors: Chang, Kai-Ping, 張凱評
• Other Authors: Wang, Li-Chun
• Format: Others
• Language: en_US
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/65525260726052379013

碩士 === 國立交通大學 === 電信工程研究所 === 99 === One of the most critical issues in providing location-based service is the power consumption in mobile terminals due to frequent location queries. In this thesis, we present a power-aware location update scheme, called energy-based location reporting. We apply dynamic programming (DP) to the traditional distance-based location reporting method to determine the optimal location update scheme with an objective of minimizing power consumption in mobile computing. The proposed DP-based energy-efficient location update scheme can also tolerate the location reporting errors within a satisfied level. We also verify the optimal location update scheme by simulations for different energy ratios and different terminal moving speeds.