Abstract
QoS is an important component of any operation, but it is particularly important in wireless transmission systems. To improve network strength and data transmission, we need to use a network that can provide the most benefits to its end users. This paper detail simulates the CSMA/CA protocol in DCF mode without using virtual channel sensing (i.e., RTS/CTS frames). In this article, a comparison of the performance of an IEEE 802.11e network is made, and the results are compared to improve the network's efficiency.