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Article

Enhanced Quality of Service of Cell-Edge User by Extending Modified Largest Weighted Delay First Algorithm in LTE Networks

1
Department of Electrical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur 50603, Malaysia
2
Department of Computer Science & Engineering, Faculty of Science & Engineering, East West University, Dhaka 1212, Bangladesh
*
Author to whom correspondence should be addressed.
Academic Editor: Angel Garrido
Symmetry 2017, 9(6), 81; https://doi.org/10.3390/sym9060081
Received: 21 March 2017 / Revised: 25 May 2017 / Accepted: 29 May 2017 / Published: 31 May 2017
Long Term Evolution (LTE) is the prominent technology in Fourth Generation (4G) communication standards, which provides higher throughput and better Quality of Service (QoS) to all users. However, users in the cell-edge area are receiving comparatively low QoS due to the distance from eNodeB (eNB) and bad channel conditions. The Conventional Modified Largest Weighted Delay First (MLWDF) algorithm is unable to resolve this issue, as it does not consider the location of the user. This paper proposes an extended MLWDF (EMLWDF) downlink scheduling algorithm to provide better services to the cell-edge user as well as to the cell-center user. The proposed algorithm divides the eNB cell area into inner and outer regions. It includes the distance of the user from attached eNB, received Signal to Interference plus Noise Ratio (SINR) and error probability into the original algorithm. The simulated results are compared with other well-known algorithms and the comparison shows that the proposed algorithm enhances overall 56.23% of cell-edge user throughput and significantly improves the average user throughput, fairness index, and spectral efficiency. View Full-Text
Keywords: LTE; scheduling algorithm; MLWDF; cell-edge user; SINR LTE; scheduling algorithm; MLWDF; cell-edge user; SINR
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MDPI and ACS Style

Chayon, H.R.; Dimyati, K.B.; Ramiah, H.; Reza, A.W. Enhanced Quality of Service of Cell-Edge User by Extending Modified Largest Weighted Delay First Algorithm in LTE Networks. Symmetry 2017, 9, 81. https://doi.org/10.3390/sym9060081

AMA Style

Chayon HR, Dimyati KB, Ramiah H, Reza AW. Enhanced Quality of Service of Cell-Edge User by Extending Modified Largest Weighted Delay First Algorithm in LTE Networks. Symmetry. 2017; 9(6):81. https://doi.org/10.3390/sym9060081

Chicago/Turabian Style

Chayon, Hasibur Rashid, Kaharudin Bin Dimyati, Harikrishnan Ramiah, and Ahmed Wasif Reza. 2017. "Enhanced Quality of Service of Cell-Edge User by Extending Modified Largest Weighted Delay First Algorithm in LTE Networks" Symmetry 9, no. 6: 81. https://doi.org/10.3390/sym9060081

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