Design And Development Of Modified-Proportional Fair Scheduler For LTE/LTE-Advanced

Mohd Khairy, Ismail and Azmi, Awang Md Isa and Mohd Nor, Husain and Muhammad Syahrir, Johal and Mohd Riduan, Ahmad (2016) Design And Development Of Modified-Proportional Fair Scheduler For LTE/LTE-Advanced. ARPN Journal Of Engineering And Applied Sciences, 11 (5). pp. 3280-3285. ISSN 1819-6608

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Abstract

Long Term Evolution (LTE) is well known as a cellular network that can support very high data rates in diverse traffic conditions. One way of achieving it is through packet scheduling which is the key scheme of Radio Resource Management (RRM) for LTE traffic processing that is functioning to allocate resources for both frequency and time dimensions. The main contribution of this paper is the design of a new scheduling scheme and its performance is compared with the Proportional Fair (PF) and Round Robin (RR) downlink schedulers for LTE by utilizing LTE Downlink System Level Simulator. The proposed new scheduling algorithm, namely the Modified-PF scheduler divides a single subframe into multiple time slots and allocates the resource block (RB) to the targeted User Equipment (UE) in all time slots for each subframe based on the instantaneous Channel Quality Indicator (CQI) feedback received from UEs. Simulation results show that the Modified-PF scheduler provides the best performance in terms of throughput and spectral efficiency with comparale fairness as compared to RR and PF schedulers. Although PF scheduler has the best fairness index, the Modified-PF scheduler provides a better compromise between the throughput/spectral efficiency and fairness. This shows that the newly proposed scheme improves the LTE output performances while at the same time maintains minimal required fairness among the UEs.

Item Type:	Article
Uncontrolled Keywords:	long term evolution, packet scheduling, radio resource management, spectral efficiency, throughput.
Subjects:	T Technology > T Technology (General) T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Electronics and Computer Engineering
Depositing User:	Mohd Hannif Jamaludin
Date Deposited:	29 Nov 2016 04:57
Last Modified:	14 Sep 2021 13:48
URI:	http://eprints.utem.edu.my/id/eprint/17694
Statistic Details:	View Download Statistic

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