As the field of communications networks continues to evolve, the challenging area of wireless sensor networks is rapidly coming of age. Recent advances have made it possible to make sensor components more compact, robust, and energy efficient than ever, earning the idiosyncratic alias of "Smart Dust." Production has also improved, yielding larger, more cost-efficient quantities for specialized telecommunications applications. However, network designers and planners for emerging telecommunication networks face specific challenges in finding the best way to integrate new network-specific circuits with existing network systems. The Handbook of Sensor Networks: Compact Wireless and Wired Sensing Systems captures the current state of sensor networks and deals with particular technical challenges such as software protocols, data processing, security, and limited power sources for remote sensors. Other topics include architecture, artificial perception, location management, dynamic power management, data funneling, and applications such as tracking, biological data acquisition, industrial sensor networking, security measures, and energy-saving techniques. A selection of highly respected professionals and researchers from leading institutions worldwide contribute their expertise to assemble a referential set of 40 brand new, in-depth articles that cover various aspects of sensor networks, from basic concepts to research-grade material, including future directions.