A Channel Management Scheme for Reducing Interference in Ubiquitous Wireless LANs Environment

Yoo, Kibaek; Kim, Chong-kwon

doi:10.1109/mue.2008.51

Cited by 3 publications

(1 citation statement)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The bandwidth of wireless network is limited because of the property of wireless networks and stations have to share the limited bandwidth. [20] IEEE 802.11b/g has 14 overlapping frequency channels. Channel 1, 6 and 11 are non-overlapping channels.…”

Section: Overlapping Channel Interferencementioning

confidence: 99%

Using a Cell-based WLAN Infrastructure Design for Resource-effective and Accurate Positioning

Chan

Baciu

Mak

2009

JCOMSS

View full text Add to dashboard Cite

A large scale WLAN infrastructure requires the placement of many thousands of access points (APs). The current approach is to deploy these in an empirical and ad-hoc manner. However, this deployment results in poor resource utilization and inaccurate positioning due to signal overlap and black spots. In this paper, we propose three structured approaches to WLAN infrastructure deployment that would allow better positioning accuracy and optimal coverage. These three approaches make use of triangular, square, and hexagonal configurations. Our results show that all three are more effective in both 2-D and 3-D space than any of the current ad-hoc or empirical approaches to AP deployment. Overall, the hexagonal approach is the most cost effective and accurate. It allows better positioning with fewer APs than are normally used. As a further contribution, 3-D rendering of buildings and wireless signal coverage could give engineers a concrete visualization that helps them to foresee where the blind spots are in advance and how signal varied across multi-story buildings, such that engineers could estimate the optimal number of APs and where they should be placed.

show abstract

Section: Overlapping Channel Interferencementioning

confidence: 99%

Using a Cell-based WLAN Infrastructure Design for Resource-effective and Accurate Positioning

Chan

Baciu

Mak

2009

JCOMSS

View full text Add to dashboard Cite

show abstract

Effect of channel interference on indoor wireless local area network positioning

Chan

Baciu

Mak

2010

2010 IEEE 6th International Conference on Wireless and Mobile Computing, Networking and Communications

View full text Add to dashboard Cite

Localization systems for indoor areas have recently been suggested that make use of existing wireless local area network (WLAN) infrastructure and location fingerprinting approach. However, most existing research work ignores channel interference between wireless infrastructures and this could affect accurate and precise positioning. A better understanding of the properties of channel interference could assist in improving the positioning accuracy while saving significant amounts of resources in the location-aware infrastructure. This paper investigates to what extent the positioning accuracy is affected by channel interference between access points. Two sets of experiments compare how the positioning accuracy is affected in three different channel assignment schemes: ad-hoc, sequential, and orthogonal data is analyzed to understand what features of channel interference affect positioning accuracy. The results show that choosing an appropriate channel assignment scheme could make localization 10% more accurate and reduce the number of access points that are required by 15%. The experimental analysis also indicates that the channel interference usually obeys a right-skewed distribution and positioning accuracy is heavily dependent on channel interference between access points (APs).

show abstract

Socially conscious channel selection in 802.11 WLANs for coexistence in a non-cooperative environment

Chou

Jha

2009

Proceedings of the 12th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems

View full text Add to dashboard Cite

A Channel Management Scheme for Reducing Interference in Ubiquitous Wireless LANs Environment

Cited by 3 publications

References 2 publications

Using a Cell-based WLAN Infrastructure Design for Resource-effective and Accurate Positioning

Using a Cell-based WLAN Infrastructure Design for Resource-effective and Accurate Positioning

Effect of channel interference on indoor wireless local area network positioning

Socially conscious channel selection in 802.11 WLANs for coexistence in a non-cooperative environment

Contact Info

Product

Resources

About