Location-based Services
Fundamentals and Operation
Chapter One
Introduction
1.1 What are Location-based Services?
Although Location-based Services (LBSs) have been an issue in the field of mobile communications
for many years, there exists neither a common definition nor a common
terminology for them. For example, the terms location-based service, location-aware service,
location-related service, and location service are often interchangeably used. One
reason for this dilemma might lie in the fact that the character and appearance of such services
have been determined by different communities, especially the telecommunications
sector and the ubiquitous computing area.
The GSM Association, which is a consortium of 600 GSM network operators, simply
defines LBSs as services that use the location of the target for adding value to the service,
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