A model for Aggregate Adjacent Channel Interference in TV White Space
2011 (English)In: IEEE Vehicular Technology Conference, 2011, 1-5 p.Conference paper (Refereed)
The presence of white spaces and spectrum holes in the TV bands represents potential opportunities for alleviating the apparent spectrum scarcity. Opportunistic spectrum access (OSA) has been proposed for the secondary user's operation and the main concern is the harmful interference that secondary systems could cause to the primary receivers. Existing studies have focused on establishing the limits for co-channel and adjacent channel interference when only one adjacent channel is used by a single secondary user. This paper presents a characterization of the aggregate adjacent channel interference (AACI) when different adjacent channels are simultaneously accessed by multiple secondary users or white space devices (WSDs). An analytical expression is proposed to approximate the limits of the tolerable AACI. Our model states that not only the interference received in each adjacent channel should stay below the corresponding threshold for that particular channel, but also the weighted sum of the total adjacent channel interference power should be kept below a certain threshold. Measurement campaigns show the cumulative effect of the adjacent channel interference (ACI) when multiple WSDs access multiple adjacent channels at the same time. The proposed analytical expression for AACI closely matches the measurement results.
Place, publisher, year, edition, pages
2011. 1-5 p.
, IEEE Vehicular Technology Conference, ISSN 1550-2252
white space, opportunistic spectrum access, adjacent channel interference, measurements
Research subject SRA - ICT
IdentifiersURN: urn:nbn:se:kth:diva-48302DOI: 10.1109/VETECS.2011.5956237ISI: 000295405800122ScopusID: 2-s2.0-80051981578ISBN: 978-1-4244-8332-7OAI: oai:DiVA.org:kth-48302DiVA: diva2:457263
2011 IEEE 73rd Vehicular Technology Conference, VTC2011-Spring. Budapest, Hungary, 15 May 2011 - 18 May 2011
FunderEU, FP7, Seventh Framework ProgrammeWireless@kth
QC 201507062011-11-172011-11-172015-07-06Bibliographically approved