Change search
ReferencesLink to record
Permanent link

Direct link
How bad is interference in IEEE 802.16e systems?
RWTH Aachen University, Germany.ORCID iD: 0000-0002-9853-2608
RWTH Aachen University, Germany.ORCID iD: 0000-0001-6682-6559
2010 (English)In: 2010 European Wireless Conference (EW), IEEE , 2010, 865-872 p.Conference paper (Refereed)
Abstract [en]

This paper presents a performance model for dynamic resource allocation in cellular deployments of IEEE 802.16e-like systems. More specifically, we derive a framework which allows to quantify the number of VoIP calls that can be supported in downlink of such systems purely based on the average SINR per terminal. The major difficulty to overcome is to predict the impact of dynamic resource allocations on the system performance in the presence of interference. We show that dynamic resource allocations perform a transformation of subcarrier SINR PDFs and derive an approximate, closed-form representation of these SINR PDFs. Based on these derivations, we derive rate PMFs which predicts system performance up to a gap of about 25% compared to optimal system performance. Furthermore, the model allows for detailed investigation of dynamic resource allocation in interference-limited scenarios. We show that the average SINR is not a valid metric to predict system performance from, but instead the received power of the signal of interest is much more important (together with the received interference power). To the best of our knowledge, such performance models are novel while the presented insights have significant consequences for network design and network self-optimization.

Place, publisher, year, edition, pages
IEEE , 2010. 865-872 p.
National Category
Communication Systems Telecommunications
URN: urn:nbn:se:kth:diva-44521DOI: 10.1109/EW.2010.5483384ScopusID: 2-s2.0-77954430373ISBN: 978-1-4244-5999-5OAI: diva2:450840
16th European Wireless Conference (EW). Lucca, Italy. April 12-15 2010

QC 20111116

Available from: 2011-10-23 Created: 2011-10-23 Last updated: 2016-05-02Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full textScopusHow bad is interference in IEEE 802.16e systems?

Search in DiVA

By author/editor
Naghibi, FarshadGross, James
Communication SystemsTelecommunications

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: 74 hits
ReferencesLink to record
Permanent link

Direct link