Interference Of ZigBee Under WLAN And Bluetooth

With the rapid development of science and technology, the application of wireless networks isincreasingly sophisticated and popular. WLAN, Bluetooth and ZigBee wireless networktechnologies become more usual in people’s daily lives and work. These techniques have incommon that they both work in the2.4GHz band, namely ISM band. ISM band refers to theindustrial, scientific and medical band, generally as a low-power, low consumption and lowtransmission rate application. As the2.4GHz band is the band which does not need a public license,so the wireless technology is able to develop rapidly. But it is precisely for this reason that lead to avariety of wireless network technologies share the same frequency band, inevitably interfere witheach other. Although the WLAN, Bluetooth and ZigBee are used for different purposes, but theywill still coexist at close range. WLAN and Bluetooth developed earlier than ZigBee, so we heremainly discuss the interference of ZigBee under WLAN and Bluetooth. Finally, based on the actualenvironment, we build an indoor model with finite difference time domain (FDTD) method andexplore the indoor radio channel propagation characteristics. And the final results are analyzed andcompared with the previous analytical methods.