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What is Wireless Grid

Encyclopedia of Information Science and Technology, Second Edition
A cyberinfrastructure that interconnects wireless devices in ad hoc or infrastructureless and hybrid or mixed-mode wireline and wireless grid configurations.
Published in Chapter:
Building Wireless Grids
Marlyn Kemper Littman (Nova Southeastern University, USA)
DOI: 10.4018/978-1-60566-026-4.ch072
The accelerating implementation and remarkable popularity of sophisticated mobile devices, including notebook computers, cellular phones, sensors, cameras, portable GPS (Global Positioning System) receivers, and wireless handhelds such as PDAs (personal digital assistants), contribute to development of wireless grids. Wireless grids feature a flexible and adaptable cyberinfrastructure that supports coordinated and economical access to distributed resources and next-generation applications and services. Generally, wireless grids are classified as ad hoc or standalone, and mixed-mode or hybrid. Ad hoc wireless grids enable diverse applications via MANETs (mobile ad hoc networks) and consist of mobile devices that operate in infrastructureless environments. Mobile network nodes process tasks and provide best effort delivery service to support wireless grid applications (Lima, Gomes, Ziviani, Endler, Soares, & Schulze, 2005). In the healthcare environment, for example, ad hoc wireless grids equipped with sensors monitor the status of critically ill patients and track the location of hospital equipment and supplies. Hybrid or mixed-mode wireless grids augment and extend the capabilities of wireline grids to remote locations; facilitate the shared use of resources and processing power; and consist of components ranging from supercomputers to distributed or edge devices such as very small satellite aperture terminals (VSATs) (Harrison & Taylor, 2006). This chapter features an introduction to factors contributing to the development of present-day wireless grids. Wireless grid technical fundamentals, specifications, and operations are examined. Security challenges associated with safeguarding wireless grids are reviewed. Finally, the distinctive characteristics of innovative wireless grid initiatives are explored and research trends in the wireless grid space are described.
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More Results
Wireless Grids
wireless grid is an extension of the capability of grid computing to wireless devices such as laptops, mobiles, PDAs, sensors, etc. to support sharing of resources within the virtual organizations. Thus it represents a large scale, complex, heterogeneous, distributed wireless network environment in which wireless devices from different administrative domains have different policies, preferences, and goals for resource sharing.
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