Performance analysis of MAC enhancements in WLAN standards

Abstract

With rigorous increases in multimedia stations and applications, wireless infrastructure IEEE 802.11 WLAN standards are widely used. Delivery of excessive concentrated traffic over bequest WLAN standards pretends the functioning by being not simpatico with the resources. Directing to the eminent network throughput, an IEEE WLAN standard has been evolved apprehended as IEEE 802.11ac with ideal data rate upto 1 Gbps. This standard has a capability of using 160 MHz bandwidth, so to utilize it as a whole is always a challenging task due to numerous other standards overlapping the allocated bandwidth. In this work, we present a brief survey of IEEE 802.11ac standard with its ancestor IEEE 802.11n standard. Particularly we concentrate on the MAC layer enhancements and recent invention of the standards. Also, we proposed an Enhanced Frame aggregation scheduler methodology in which proposed EFAS breaks the frames into smaller frames in the IEEE802.11ac standard and dynamically transmits the frame by analyzing the traffic. The evaluation of the proposed EFAS methodology is simulated in Network Simulator (NS2) by comparing it with the IEEE802.11ac standard method. The proposed methodology can be imposed at IEEE 802.11 MAC for achieving better audio quality. newline