QCI and QoS aware downlink packet scheduling algorithms for multi-traffic classes over 4G and beyond wireless networks

Nasralla, Moustafa and Rehman, Ikram (2019) QCI and QoS aware downlink packet scheduling algorithms for multi-traffic classes over 4G and beyond wireless networks. In: International Conference on Innovation and Intelligence for Informatics, Computing, and Technologies (IEEE - 3ICT), 18-20 November 2018, Bahrain.

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Abstract

The recent advancements in wireless technologies and applications make downlink scheduling and resource allocation a hot topic of research. Hence, fair scheduling and balanced Quality of Service (QoS) delivery for different types of traffic (e.g., video, VoIP, and best-effort) are vital for next-generation wireless networks. In this paper, we compare and analyze different downlink scheduling strategies in terms of network-centric performance metrics such as average packet loss ratio, average throughput, system fairness, and system spectral efficiency. In addition, we show the effect of the QoS Class Identifier (QCI) parameters on different delay-aware scheduling algorithms. Furthermore, we propose a group of algorithms to improve the existing Log-rule, Linear-rule, and Modified Largest Weighted Delay First (M-LWDF) scheduling strategies. This is achieved by including in the algorithms the QCI parameters in order to balance the QoS delivery for different traffic-classes with improvement to the overall system performance. Through simulation, we show that the proposed scheduling algorithms utilising the QCI and QoS parameters introduce a remarkable multi-objective improvement of the QoS performance parameters for different traffic classes (i.e., real-time and non-real-time).

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: QCI; QoS; LTE/LTE-A; Downlink scheduling algorithms; Real-time; Non-Real-time.
Subjects: Computing
Depositing User: Ikram Rehman
Date Deposited: 10 Jul 2019 08:36
Last Modified: 05 Oct 2019 12:44
URI: http://repository.uwl.ac.uk/id/eprint/6229

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