Modern wireless technologies - ZigBee

This bachelor work tells about wireless security of house – ZigBee. It is introducing problems of wireless technology based on standard IEEE 802.15.4, comparing to another wireless technologies and presenting potentionalities of it’s use and areas of it’s excercise. The work is related to creation of simulated model in OPNET Modeler environment, which simulates a field of sensors. The purpose of the whole effort is to state time-delay of information transfer, specify reliability of the transfer and lay down energy intensity of the process runned over the area of sensors