A Scalable Rate Adaptation Mechanism for IEEE 802.11e Wireless

Although many rate adaptation schemes have been introduced to efficiently utilize the multiple transmission rates of the IEEE 802.11 standard, automatic rate fallback (ARF) is the most widely implemented scheme on the market because of its simplicity. Our study reveals that the ARF malfunctions seve...

Full description

Saved in:
Bibliographic Details
Main Authors: Hakyung Jung, Taekyoung Kwon, Yanghee Choi, Yongho Seok
Format: Conference Proceeding
Language:English
Subjects:
Analytical models
Communication standards
Consumer electronics
Mobile communication
Multimedia communication
Quality of service
Road accidents
Scalability
Traffic control
Wireless LAN
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Although many rate adaptation schemes have been introduced to efficiently utilize the multiple transmission rates of the IEEE 802.11 standard, automatic rate fallback (ARF) is the most widely implemented scheme on the market because of its simplicity. Our study reveals that the ARF malfunctions severely when it is used over IEEE 802.11e WLANs. The reason is that the intolerably shortened range of contention window for voice access category induces frequent collisions even when a small number of users contend. This paper demonstrates the inefficiency of the ARF using an analytic model and proposes a new rate adaptation scheme that maintains scalability. Simulation reveals that our scheme performs consistently well compared to the ARF scheme.
ISSN:2153-1447
DOI:10.1109/FGCN.2007.41