8Energy Management in Context Querying
Abstract: In context-aware computing, one big concern with querying contextual information is power consumption, particularly when involving energy-constrained sensor nodes and mobile services. This chapter depicts the energy-efficient computation problem in general, followed by some guidelines to tackle the problem in context querying. From the lowest hardware, computer server, cluster system, to the highest application levels, existing energy-saving strategies, techniques, evaluation models and benchmarks are reviewed. Some energy-efficient context querying techniques at the sides of sensors, mobile front ends, and servers are particularly addressed.
8.1Energy-Efficiency Requirement
Over the past few decades, ...
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