International Journal on Computer Science and Technology (IJCST)
ZigBee (IEEE 802.15.4-2006 standard) is a category in the IEEE 802 family, along with some of the well-known protocols such as Wi-Fi and Bluetooth which uses the 2.4 GHz Industrial and Scientific and Medical (ISM) radio band. ZigBee also utilizes 868MHz and 915MHz in different parts of the world according to local standards. Unlike Wi-Fi and Bluetooth, ZigBee was developed for low-rate WPAN (LR-WPAN) which feature long battery life by having low data rates. In ZigBee WSN's, topology plays an important role and is one of the most significant parameter in wireless sensor networks.