Effective AP selection and load balancing in IEEE 802.11 wireless LANs

Jyh-Cheng Chen*, Tuan Che Chen, Tao Zhang, Eric Van Den Berg

*Corresponding author for this work

研究成果: Conference contribution同行評審

33 引文 斯高帕斯(Scopus)

摘要

IEEE 802.11 wireless LANs have been widely deployed. How to efficiently balance the traffic loads among Access Points (APs), which will lead to improved network utilization and higher quality of user experience, has become an important issue. A key challenge is how to select an AP to use during the handoff process in a way that will achieve overall load balance in the network. The conventional approaches typically use Signal-to-Noise Ratio (SNR) as the criterion without considering the load of each AP. In this paper, we propose two effective new AP selection algorithms. These algorithms estimate the AP traffic loads by observing and estimating the IEEE 802.11 frame delays and use the results to determine which AP to use. The algorithms can be implemented in software on mobile stations alone. We will show that better performance can be achieved when the APs provide assistance in delay measurements; however, the improvement is not significant. There is no need to exchange information among APs. The proposed algorithms are fully compatible with the existing standards and systems and they are easy to implement. We will present extensive simulation results to show that the proposed algorithms can significantly increase overall system throughput and reduce average frame delay.

原文English
主出版物標題IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
DOIs
出版狀態Published - 1 十二月 2006
事件IEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference - San Francisco, CA, United States
持續時間: 27 十一月 20061 十二月 2006

出版系列

名字GLOBECOM - IEEE Global Telecommunications Conference

Conference

ConferenceIEEE GLOBECOM 2006 - 2006 Global Telecommunications Conference
國家United States
城市San Francisco, CA
期間27/11/061/12/06

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