Chapter 3

Location in Wireless Local Area Networks

Marc Ciurana, Israel Martin-Escalona, and Francisco Barcelo-Arroyo

3.1 Introduction

The development of localization technologies and the growing importance of ubiquitous and context-aware computing have led to a growing business interest in location-based applications and services. Most applications need to locate or track physical assets inside buildings accurately, thus the availability of advanced indoor positioning has become a key requirement in some markets. Unfortunately, this requirement cannot be met by the global positioning system (GPS), which is unable to provide valid location information in most existing indoor environments—especially far indoors—because the signals transmitted ...

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