liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Adjacent Channel Interference in 802.11a Is Harmful: Testbed Validation of a Simple Quantification Model
Linköping University, Department of Science and Technology. Linköping University, The Institute of Technology.
2011 (English)In: IEEE COMMUNICATIONS MAGAZINE, ISSN 0163-6804, Vol. 49, no 3, 160-166 p.Article in journal (Refereed) Published
Abstract [en]

Wireless LAN radio interfaces based on the IEEE 802.11a standard have lately found widespread use in many wireless applications. A key reason for this was that although the predecessor, IEEE 802.11b/ g, had a poor channelization scheme, which resulted in strangling adjacent channel interference (ACI), 802.11a was widely believed to be ACI-free due to a better channelization combined with OFDM transmission. We show that this is not the case. ACI does exist in 802.11a, and we can quantify its magnitude and predict its results. For this, we present minor modifications of a simple model originally introduced by [1] that allow us to calculate bounding values of the 802.11a ACI, which can be used in link budget calculations. Using a laboratory testbed, we verify the estimations of the model, performing experiments designed to isolate the affected 802.11 mechanisms. This isolation was enabled by not using the wireless medium, and emulating it over cables and attenuators. Our results show clear throughput degradation because of ACI in 802.11a, the magnitude of which depends on the interfering data rates, packet sizes, and utilization of the medium.

Place, publisher, year, edition, pages
IEEE Institute of Electrical and Electronics , 2011. Vol. 49, no 3, 160-166 p.
Keyword [en]
802.11, Interference, Wireless
National Category
Telecommunications Telecommunications Control Engineering Information Science
URN: urn:nbn:se:liu:diva-67834DOI: 10.1109/MCOM.2011.5723815ISI: 000289214800020OAI: diva2:413595
Available from: 2011-04-29 Created: 2011-04-29 Last updated: 2011-05-31

Open Access in DiVA

No full text

Other links

Publisher's full text

Search in DiVA

By author/editor
Angelakis, Vangelis
By organisation
Department of Science and TechnologyThe Institute of Technology
TelecommunicationsTelecommunicationsControl EngineeringInformation Science

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 92 hits
ReferencesLink to record
Permanent link

Direct link