Survey on MAC Scheduling Algorithms for WiMax(IEEE 802.16) Networks

Ashlin Sherry, Dr. Manikandan K,Karthik Sistla, Sathwasta Golla


WiMax (World Wide Interoperability for Microwave Access), is an emerging wireless technology that is anticipated to replace the
traditional wired broadband. Being one of the most promising technologies which supports applications like VoIP (Voice over Internet Protocol),
online gaming, and the likes, it is necessary to provide best QoS (Quality of Service) for the users, and for that, an effective traffic scheduling is
necessary. Today wireless networks play a critical role in connecting people to the Internet, and it is important for the network to provide proper
packet flows. Algorithms for wired networks cannot directly used for wireless networks as wireless channels experience errors like burst channel
and location dependent error, unlike wired networks. The objective of this paper is to discuss the various uplink and downlink MAC (Media
Access Control) scheduling algorithms for a WiMax system and compare their performance with respect to each other. Classification and
characteristics of different algorithms based on their fundamental working principle are considered and summarized.


Keywords: Wireless Networks, WiMax, Scheduling Algorithms, Quality of Service, Uplink and Downlink MAC scheduling

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