Performance Evaluation of Unslotted CSMA/CA Algorithm in Wireless Sensor Networks
Lei Niu, Dongdong Liu · 2020 IEEE 5th Information Technology and Mechatronics Engineering Conference (ITOEC) · 2020
With the rapid development of the Internet of things in recent years, wireless sensor networks with the characteristics of short distance and low power consumption have been widely used, especially based on Unslotted CSMA/CA wireless sensor networks. How to optimize the performance of wireless sensor network in different application scenarios is a problem faced by Unslotted CSMA/CA algorithm. We use OPNET to build simulation model, and adjust two important parameters of CSMA/CA algorithm, namely BE (Backoff exponent) and NB (Number of backoff), then collect two important simulation results of network throughput and network delay. Through the analysis of the simulation results, we can find out how to adjust the parameters in different scenarios, so as to achieve the best network performance in different application scenarios of the Internet of things.