Performance Analysis of Quality of Service Evaluation in IEEE 802.15.4 Wireless Sensor Networks

The popularity of Wireless Sensor Networks (WSN) have increased tremendously in recent time due to growth in Micro-Electro-Mechanical Systems (MEMS) technology. WSN has the potentiality to connect the physical world with the virtual world by forming a network of sensor nodes. IEEE 802.15.4 is the emerging next generation standard designed for low-rate wireless personal area networks (LR-WPAN). The work reported in this paper provides performance evaluation of quality of service parameters for WSN based on IEEE 802.15.4 star topology. The performance studies have been evaluated for varying traffic loads using MANET routing protocol in QualNet . The data packet delivery ratio, average end-to-end delay, total energy consumption, network lifetime and percentage of time in sleep mode have been used as performance metrics. Simulation results show that DSR (Dynamic Source Routing) performs better than DYMO (Dynamic MANET On-demand) and AODV (Ad?hoc On demand Distance Vector) routing protocol for varying traffic loads rates.