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Location-based services are fast becoming popular in different areas of the world due to the availability of smart phones and investments by mobile operators in satisfying requests from users. The Quality of Service (QoS) offered in LBS is dependent on the amount mobile users and the mobile network operators are willing to invest. With feature-rich modern smart phone users get better accuracy using the Global Positioning System (GPS) or Assisted GPS (A-GPS) location method, but unfortunately most users do not have the means to invest in such high-end devices. To ensure improved QoS delivery to Mobile Stations (MS) with no GPS, the accuracy offered by network-based location methods needs to be reviewed and improved.
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