Date Added: Jan 2012
Habitat and environmental monitoring are driving applications for wireless sensor network. This work present a performance evaluation of Zigbee which is IEEE 802.15.4 standard, focusing on energy required for sending and receiving uplink packets and hence battery lifetime. The authors analyzed the performance based on these two metrics. The analytical and simulation results are perfectly matched. Wireless ad hoc network is a generic term grouping different networks, which are self organizing, meaning that there is neither a centralized administration nor a fixed network infrastructure, and communication links are wireless. A wireless sensor network is an ad hoc network consisting of spatially distributed autonomous sensor nodes which are equipped with radio transceiver, a microcontroller, an energy source and sensor to cooperatively monitor or environmental conditions.