Performance of multi-hop networks using beacon and non-beacon scheduling in Wireless Sensor Network (WSN)

Wireless Sensor Network (WSN) is a promising technology for many applications, such as industrial, environment, and health-care application. The first requirement of WSN is energy efficiency in order to increase the network node lifetime. The second is reliability because packet drop cannot be tolerated in critical time applications. In this paper, we use NS2 simulation to evaluate and analyze the IEEE 802.15.4 standard in multi-hop WSN with a tree topology base on IEEE 802.15.4. Beacon enabled mode is used slotted CSMA/CA and non-beacon enabled mode is used unslotted CSMA/CA. Performance of beacon enabled and non-beacon enabled were evaluated and analyzed to understand the impact of protocol parameters such as Superframe Order (SO), Beacon Order (BO), and Traffic Load. The performance of the network which have been evaluated in detail are the throughput, energy consumption, end to end delay, packet success probability, drop packets and the percentage of the energy efficiency. The simulation result show that of beacon enabled is better than non beacon enabled in terms of the throughput, drop packet, energy consumption, and energy efficiency.