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Topology Control in Wireless Sensor Networks addresses the need for a text that combines the background material needed to understand wireless sensor networks with in-depth material about topology control, which is a very important topic related to this technology; and a companion simulation tool of great value for instructors and researchers. Topology Control in Wireless Sensor Networks is a self-contained text for practitioners, engineers, students, professors, and researchers. The first six chapters contain general information about wireless sensor networks and its applications as well as a thorough but concrete description of the most important issues, design guidelines, and available protocols and algorithms utilized at the Physical, MAC, Network, and Transport Layers of the communication protocol stack. In addition, this first part of the book introduces the reader to the concept of topology control, which is expanded to include, for the first time, topology construction and topology maintenance techniques. Parts II and III are devoted to the description and evaluation of topology construction and topology maintenance techniques, providing detailed descriptions of the most important techniques and their effectiveness in their goal to enhance the overall lifetime of wireless sensor networks. Finally, the appendix includes a description of Atarraya, an event-driven simulation tool, designed for teaching and researching topology control algorithms for wireless sensor networks.

Sensor networks. --- Wireless communication systems. --- Wireless LANs. --- Wireless communication systems --- Wireless LANs --- Sensor networks --- Electrical Engineering --- Telecommunications --- Electrical & Computer Engineering --- Engineering & Applied Sciences --- Wi-Fi LANs --- WiFi LANs --- Wireless local area networks --- WLANs (Wireless LANs) --- Communication systems, Wireless --- Wireless data communication systems --- Wireless information networks --- Wireless telecommunication systems --- Engineering. --- Computer communication systems. --- Computer simulation. --- Electrical engineering. --- Communications Engineering, Networks. --- Computer Communication Networks. --- Simulation and Modeling. --- Local area networks (Computer networks) --- Telecommunication systems --- Telecommunication. --- Computer modeling --- Computer models --- Modeling, Computer --- Models, Computer --- Simulation, Computer --- Electromechanical analogies --- Mathematical models --- Simulation methods --- Model-integrated computing --- Electric communication --- Mass communication --- Telecom --- Telecommunication industry --- Communication --- Information theory --- Telecommuting --- Communication systems, Computer --- Computer communication systems --- Data networks, Computer --- ECNs (Electronic communication networks) --- Electronic communication networks --- Networks, Computer --- Teleprocessing networks --- Data transmission systems --- Digital communications --- Electronic systems --- Information networks --- Telecommunication --- Cyberinfrastructure --- Electronic data processing --- Network computers --- Electric engineering --- Engineering --- Distributed processing

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The book provides a comprehensive introduction to developing location-based information systems based on GPS-enabled cellular phones. It describes all of the components needed to develop a location-based information system and provides readers with the opportunity to build an example application. Chapters cover obtaining a user's location, storing and retrieving data, communicating over a network, Java ME Web services, and visualizing data. In the theoretical chapters, the authors address location provider architectures, the hardware and software architecture of a mobile phone, the Java ME platform, and other important programming aspects for mobile phones--

Location-based services. --- Information services. --- Data collection services --- Information brokers --- Information centers --- Information science service organizations --- Information service providers --- Providers of information services --- Information retrieval --- Information science --- Documentation --- Research --- LBS (Information services) --- Location-based computing --- Mobile location services --- Telegeoinformatics --- Information services --- Wireless localization

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Drawing on the authors’ more than six years of R&D in location-based information systems as well as their participation in defining the Java ME Location API 2.0, this text describes the technical components needed to create location-based services with an emphasis on nonproprietary, freely available solutions that work across different technologies and platforms. Each chapter presents a general real-time tracking system example that can be easily adapted to target any application domain and that can incorporate other sensor data to make the system "participatory sensing" or "human-centric sensing." A companion website offers many supporting materials.