Title
Group-Based Medium Access Control For Ieee 802.11N Wireless Lans
Keywords
Computer networks; IEEE 802.11n standard; medium access control; wireless LAN
Abstract
The latest generation of Wireless Local Area Networks (WLANs) is based on IEEE 802.11n-2009 Standard. The standard provides very high data rates at the physical layer and aims to achieve a throughput at the Medium Access Control (MAC) layer that is higher than 100 Mbps. To do that, the standard introduces several mechanisms to improve the MAC efficiency. The most notable ones are the use of frame aggregation and Block-ACK frames. The standard, however, does not introduce a mechanism to reduce the probability of collision. This issue is significant because, with a high data rate, an AP would be able to serve a large number of stations, which would result in a high collision rate. In this paper, we propose a Group-based MAC (GMAC) scheme that reduces the probability of collision and also uses frame aggregation to improve the efficiency. The contending stations are divided into groups. Each group has one station that is the group leader. Only the leader stations contend, hence, reducing the probability of a collision. We evaluate the performance of our scheme with analytic and simulation results. The results show that GMAC achieves a high throughput, high fairness, low delay and maintains a high performance with high data rates. © 2012 IEEE.
Publication Date
1-7-2013
Publication Title
IEEE Transactions on Mobile Computing
Volume
12
Issue
2
Number of Pages
304-317
Document Type
Article
Personal Identifier
scopus
DOI Link
https://doi.org/10.1109/TMC.2011.264
Copyright Status
Unknown
Socpus ID
84871806581 (Scopus)
Source API URL
https://api.elsevier.com/content/abstract/scopus_id/84871806581
STARS Citation
Abichar, Zakhia Zak and Chang, J. Morris, "Group-Based Medium Access Control For Ieee 802.11N Wireless Lans" (2013). Scopus Export 2010-2014. 7778.
https://stars.library.ucf.edu/scopus2010/7778