Abstract: A ZigBee network platform is developed to improve performance under a wide range of conditions for both unicast and broadcast packets over ZigBee networks that support multi-hopping. Both ZigBee networking and IEEE 802.15 Transport layer utility like fragmentation and reassembly which are performed at the application layer, since the ZigBee network does not have a fragmentation support. Observations and resulting statistics are presented, and the MAC schedule provides to increase in lifetime for different traffic scenarios in the get broadcast schedule to robotically coordinate the nodes that can decrease packet delivery delays, which can provide an increases efficiency and also throughput will increases. At the similar time, an increase in packet size boost the lost in packet. This is because the radio transmits for packet or until interrupted, whatever the packet size. The advantages of ZigBee are reduced further when the data packet size achieve that of the advertisement size because the advertisement packet is no longer easier to hear than the data packet. As discussed, we begin this evaluation with the simulation of an analytical model, and verify it with a Matlab implementation.
Keywords: ZigBee, Wireless sensor networks (WSNs), Transmit, Receive Schedule, unicast and broadcast packet, MAC Schedule, Efficiency and Throughput, IEEE 802.11, network.