Design and performance analysis of bandwidth and QoS aware LTE uplink scheduler in heterogeneous traffic environment

Safdar N.K. Marwat, Yasir Zaki, Carmelita Goerg, Thushara Weerawardane, Andreas Timm-Giel

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Long Term Evolution (LTE) uses Single Carrier Frequency Division Multiple Access (SC-FDMA) as the uplink transmission scheme. The Quality of Service (QoS) provision is one of the primary objectives of the wireless network operators. In this paper, the end-to-end QoS performance of Bandwidth and QoS Aware (BQA) scheduler for LTE uplink is evaluated in heterogeneous traffic environment. The BQA scheduler is designed to provide efficient allocation of radio resources to users according to the QoS requirements of various traffic classes and the instantaneous channel conditions. The user QoS provision is ensured by using dynamic QoS weights. Additionally, the delay sensitive traffic is facilitated by employing delay thresholds. The BQA scheduler algorithm supports multi-bearer users. The end-to-end QoS performance of the scheduler is analyzed in several simulation scenarios. The results show that the proposed scheduler guarantees provision of QoS to users.

Original languageEnglish (US)
Title of host publicationIWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference
Pages499-504
Number of pages6
DOIs
StatePublished - 2012
Event8th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2012 - Limassol, Cyprus
Duration: Aug 27 2012Aug 31 2012

Publication series

NameIWCMC 2012 - 8th International Wireless Communications and Mobile Computing Conference

Other

Other8th IEEE International Wireless Communications and Mobile Computing Conference, IWCMC 2012
CountryCyprus
CityLimassol
Period8/27/128/31/12

Keywords

  • QoS
  • SC-FDMA
  • bandwidth
  • scheduling
  • uplink

ASJC Scopus subject areas

  • Computer Networks and Communications

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