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Throughput Analysis of Proportional Fair Scheduling for Sparse and Ultra-Dense Interference-Limited OFDMA/LTE Networks
KTH, School of Electrical Engineering (EES), Communication Theory.ORCID iD: 0000-0001-6682-6559
2016 (English)In: IEEE Transactions on Wireless Communications, ISSN 1536-1276, E-ISSN 1558-2248, Vol. 15, no 10, 6857-6870 p.Article in journal (Refereed) Published
Abstract [en]

Various system tasks, such as interference coordination, handover decisions, admission control, and so on in current cellular networks require precise mid-term (spanning over a few seconds) performance models. Due to channel-dependent scheduling at the base station, these performance models are not simple to obtain. Furthermore, LTE cellular systems are interference limited; hence, the way interference is modeled is crucial for the accuracy. In this paper, we present a closed-form analytical model for the throughput expectation of proportional fair scheduling in orthogonal frequency division multiple access/LTE networks. The model takes into account a precise signal-to-interference-and-noise ratio (SINR) distribution as well as considering limitations with respect to modulation and coding, as encountered in LTE networks. Furthermore, the analysis is extended to ultradense deployments likely to happen in the 5th generation of cellular networks. The resulting analytical performance model is validated by means of simulations, considering realistic network deployments. Compared with related work, the model introduced in this paper demonstrates a significantly higher accuracy for mid-term throughput estimation.

Place, publisher, year, edition, pages
IEEE Press, 2016. Vol. 15, no 10, 6857-6870 p.
Keyword [en]
Performance analysis, scheduling algorithms, communication channels, throughput, OFDMA
National Category
Communication Systems
Identifiers
URN: urn:nbn:se:kth:diva-190949DOI: 10.1109/TWC.2016.2592501ISI: 000386068800025Scopus ID: 2-s2.0-84994544649OAI: oai:DiVA.org:kth-190949DiVA: diva2:953840
Funder
ICT - The Next Generation
Note

QCR 20161118

Available from: 2016-08-18 Created: 2016-08-18 Last updated: 2016-11-18Bibliographically approved

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CiteExportLink to record
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Citation style
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