Design and Development of a System for the Improvement of Network Efficiency in IEEE 802.11E

The two most critical challenges in developing network protocols for utilizing real-time applications are high throughput and low delay. WLANs enable broadband multimedia communication, thus fulfilling QoS requirements such as these might be problematic. For packet transmission, IEEE 802.11 uses the (DCF) protocol and the BEB algorithm. In WLANs, the packet transmission technique has a major impact on the performance parameters like throughput and delay. So far, various Markov models have been made to check and improve the quality. However, recent models fail with significant packet collisions that decrease throughput and delay, crowded surroundings, and they are still unable to predict the network performance accurately This paper uses, a protocol and algorithm to reduce collisions and prevent the channel capture effect. The performance of the modified protocol, known as the CA-DCF (CAD) protocol, is assessed in terms of throughput and delay.