Throughput Enhancement of Wireless Sensor Networks with IEEE 802.15.4 MAC based on Channel Allocation
IEEE 802.15.4 standard was especially designed to provide specifications for simple, low data rate, ultra-low power and economical Wireless Personal Area Networks (WPANs). By exploiting the 16 non-interfering channels supported by IEEE 802.15.4, they can improve the channel capacity of wireless sensor networks. This paper analyses the performance of a channel assignment method based on 3-hop neighborhood which enhances the throughput of 802.15.4 MAC by reducing the number of packets dropped. Simulation results using NS2 demonstrates improvement in throughput and reduction in average end to end delay.