Next Generation Wireless Networks
Focusing on the defining architectures, services and applications, this book is an organized and edited work of enabling technologies for the applications and services needed for future wireless networks.
TABLE OF CONTENTS Next Generation Wireless Networks
Chapter 7: Enhancing Terminal Coverage and Fault Recovery in Configurable Cellular Networks Using Geolocation Services
MOSTAFA A.BASSIOUNI and WEI CUI
School of Computer Science-University of Central Florida, Orlando, Florida, USA
ABSTRACT:
In this paper, we discuss the application of geolocation services in improving mobile connectivity and enhancing the effectiveness of fault recovery in configurable cellular networks. Real-time location measurements (e.g., GPS) are used to guide the movement of the mobile base stations to provide better coverage of the different groups (swarms) of mobile terminals. Umbrella coverage via a more powerful transceiver is used to enhance the overall terminal coverage and simplify the movement coordination strategies and improve the efficiency of the channel allocation protocol. When a base station becomes immobilized or faulty, a recovery protocol is used to prevent discontinuation of coverage for the mobile terminals that were being serviced by this base station. Real-time location measurements are crucially important for the proper execution of the recovery protocol.
KEYWORDS:
mobile positioning, GPS, cellular networks, mobile base stations, channel allocation, handoff blocking, new call admission.
1. INTRODUCTION
Cellular wireless systems and their related algorithms have been proposed and evaluated for the purpose of achieving better utilization of the radio spectrum and improving the QoS of wireless connections [CHO98, CH100]. In traditional cellular systems, the service area is divided into regions called cells. Each cell is served by a stationary base station (BS). Base stations are connected via wirelines to mobile switching centers which provide the interface to the wired backbone. When the mobile crosses the boundary of its current cell and enters into a...
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