Introduction - If you have any usage issues, please Google them yourself
ecent advances in electrical engineering and computer science, esp ecially in micro-
electro-mechanical systems (MEMS), very-large-scale integration (VLSI) and op erating
system theory, have made wireless sensor network (WSN) technologies an imp ortant
and promising research area. As the circuitry b ecame smaller and cheap er, the idea
of co op eratively sensing physical or environmental conditions, such as magnetic eld
intensity, temp erature, light intensity, sound, vibration, pressure, motion or p ollutants
with the help of a network of sensor no des has b ecome feasible.