Highest urgency first scheduling adapted in IEEE 802.11n to support quality of service

Abstract

In this paper, the medium access control layer scheduling of IEEE 802.11n standards is examined. This standard also known as high speed Wireless Local Area Network (WLAN) is competent to become carrier Wi-Fi in the evolved packet core (EPC). Scheduling algorithms are playing a major task in yielding quality of service (QoS) in high speed wireless networks of next generation. IEEE 802.11n standard has some support for QoS based scheduling but one that focuses on urgency of frames is not dealt much in detail. This paper proposes the idea of extending Highest Urgency First (HUF) to IEEE 802.11n network with the objective of supporting QoS. Scheduling in Wireless LAN is a relevant research and a well designed scheduling algorithm will contribute to the literature and increases revenue to the service provider. Results from the QualNet simulation validate that the HUF scheduling algorithm performs better in terms of delay, throughput and reduced violation rate of latency requirements.