Foundation of Indoor Information Services:A Survey of Low-cost Localization Techniques

Abstract

Recently,with the development of Internet of things technology and the proposal of smart city concept,location-based service is developing rapidly,especially,the outdoor location services provided by global positioning system (GPS) based on satellite signals have penetrated into every aspect of out daily life.However,GPS is not applicable for indoor space due to the low localization accuracy,affected by the complex indoor environment.In order to improve the localization accuracy,indoor localization techniques are proposed.The techniques which utilize the existing devices such as Wi-Fi,low energy Bluetooth (BLE) are attracting more and more attention due to their advantages of low cost and easy deployment.This paper surveys the recent research work of low-cost indoor localization techniques with the basic motivations,implementations and their localization performance.Finally,the future development trend is prospected.

Keywords

• indoor information services|indoor localization|location-based service|low-cost localization