DocumentCode
1954710
Title
Analysis of contention based access for best effort traffic on fixed WiMAX
Author
Perera, Shehan ; Sirisena, Harsha
Author_Institution
Department of Electrical & Computer Engineering, University of Canterbury, New Zealand
fYear
2007
fDate
10-14 Sept. 2007
Firstpage
552
Lastpage
558
Abstract
In this paper we analyze the medium access control (MAC) of fixed WiMAX with respect to best effort (BE) traffic. WiMAX employs a contention based method with exponential backoff to facilitate multiple access. A two-dimensional Markov chain can be used to accurately model the backoff procedure. From this we derived expressions for channel access probability, access delay, system throughput and resource usage. The accuracy of the model and its results are validated by simulations carried out on an IEEE 802.16d simulator. Constraints and limitations of the model are also discussed. Insight from this model can be used to optimize bandwidth usage and channel partitioning.
Keywords
Bandwidth; Base stations; Delay; Downlink; Job shop scheduling; Quality of service; Telecommunication traffic; Throughput; Traffic control; WiMAX; IEEE802.16; Markov chain; best effort traffic; contention;
fLanguage
English
Publisher
ieee
Conference_Titel
Broadband Communications, Networks and Systems, 2007. BROADNETS 2007. Fourth International Conference on
Conference_Location
Raleigh, NC, USA
Print_ISBN
978-1-4244-1432-1
Electronic_ISBN
978-1-4244-1433-8
Type
conf
DOI
10.1109/BROADNETS.2007.4550482
Filename
4550482
Link To Document