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WE-MQS: A new LTE Downlink Scheduling Scheme for Voice Services based on User Perception

International Journal of Computer Applications
Foundation of Computer Science (FCS), NY, USA
Year of Publication: 2016
Duy-Huy Nguyen, Hang Nguyen, Éric Renault

Hang Nguyen Duy-Huy Nguyen and Éric Renault. WE-MQS: A new LTE Downlink Scheduling Scheme for Voice Services based on User Perception. International Journal of Computer Applications 142(10):28-36, May 2016. BibTeX

	author = {Duy-Huy Nguyen, Hang Nguyen and Éric Renault},
	title = {WE-MQS: A new LTE Downlink Scheduling Scheme for Voice Services based on User Perception},
	journal = {International Journal of Computer Applications},
	issue_date = {May 2016},
	volume = {142},
	number = {10},
	month = {May},
	year = {2016},
	issn = {0975-8887},
	pages = {28-36},
	numpages = {9},
	url = {},
	doi = {10.5120/ijca2016909948},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


The Long Term Evolution (LTE) is a high data rates and fully All-IP network. Scheduling and resource allocation are very important tasks in LTE network. So that, the optimization of the real-time services transmission is very essential. However, there are many challenges when deploying the live multimedia services such as VoIP, Video, etc. This paper proposes a new scheduling scheme which based on the Wideband (WB) E-model, Channel- and QoS-Aware (known as WE-MQS scheduler) for voice traffic in LTE downlink direction. The voice traffic flow is very sensitive to network impairments such as delay, packet loss, jitter, etc. The proposed scheduling scheme is based on the extension of the WB E-model and the consideration of Maximum Queue Size (MQS) as a factor for the metric. Since this scheduling scheme considers Mean Opinion Score (MOS) values, thus, it gets higher user perception. The simulation results show that the proposed scheme has the performance which not only satisfies QoS requirements of voice services but also outperforms well-known schedulers such as Frame Level Scheduler (FLS), Modified Largest Weighted Delay First (M-LWDF) and Exponential/Proportional Fair (EXP/PF) schedulers in terms of delay for all the number of user (NU) and Packet Loss Rate (PLR) when the NU is more than 47. For the cell throughput, Fairness Index (FI), and Spectral Efficiency, the proposed scheduler is always in the middle of the remaining schedulers. The performance evaluation is compared in terms of Delay, PLR, Throughput, FI, and FI for FLS, M-LWDF, EXP/PF schedulers and the proposed one.


  1. 3GPP.
  2. Salman Ali and Muhammad Zeeshan. A utility based resource allocation scheme with delay scheduler for lte service-class support. In Wireless Communications and Networking Conference (WCNC), 2012 IEEE, pages 1450–1455. IEEE, 2012.
  3. Mehdi Alasti, Behnam Neekzad, Jie Hui, and Rath Vannithamby. Quality of service in wimax and lte networks [topics in wireless communications]. Communications Magazine, IEEE, 48(5):104–111, 2010.
  4. Francesco Capozzi, Giuseppe Piro, Luigi Alfredo Grieco, Gennaro Boggia, and Pietro Camarda. Downlink packet scheduling in lte cellular networks: Key design issues and a survey. Communications Surveys & Tutorials, IEEE, 15(2):678–700, 2013.
  5. Giuseppe Piro, Luigi Alfredo Grieco, Gennaro Boggia, Rossella Fortuna, and Pietro Camarda. Two-level downlink scheduling for real-time multimedia services in lte networks. Multimedia, IEEE Transactions on, 13(5):1052–1065, 2011.
  6. Pablo Ameigeiras, Jeroen Wigard, and Preben Mogensen. Performance of the m-lwdf scheduling algorithm for streaming services in hsdpa. In Vehicular technology conference, 2004. VTC2004-Fall. 2004 IEEE 60th, volume 2, pages 999–1003. IEEE, 2004.
  7. Jong-Hun Rhee, Jack M Holtzman, and Dong-Ku Kim. Scheduling of real/non-real time services: adaptive exp/pf algorithm. In Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual, volume 1, pages 462–466. IEEE, 2003.
  8. Ali Alfayly, I Mkwawa, Lifeng Sun, and Emmanuel Ifeachor. Qoe-based performance evaluation of scheduling algorithms over lte. In Globecom Workshops (GC Wkshps), 2012 IEEE, pages 1362–1366. IEEE, 2012.
  9. Ali Alfayly, Is-Haka Mkwawa, Lingfen Sun, and Emmanuel Ifeachor. Qoe-driven lte downlink scheduling for voip application. In Consumer Communications and Networking Conference (CCNC), 2015 12th Annual IEEE, pages 603–604. IEEE, 2015.
  10. Meysam Nasimi, Mohammad Kousha, and Fazirulhisyam Hashim. Qoe-oriented cross-layer downlink scheduling for heterogeneous traffics in lte networks. In Communications (MICC), 2013 IEEE Malaysia International Conference on, pages 292–297. IEEE, 2013.
  11. M Sajid Mushtaq, Brice Augustin, and Abdelhamid Mellouk. Qoe-based lte downlink scheduler for voip. In Wireless Communications and Networking Conference (WCNC), 2014 IEEE, pages 2190–2195. IEEE, 2014.
  12. Giuseppe Piro, Luigi Alfredo Grieco, Gennaro Boggia, Francesco Capozzi, and Pietro Camarda. Simulating lte cellular systems: an open-source framework. Vehicular Technology, IEEE Transactions on, 60(2):498–513, 2011.
  13. Carsten Bormann, C Burmeister, M Degermark, et al. Robust header compression (rohc). Technical report, RFC 3095, June, 2001.
  14. ITUT Rec. G. 722.2 (2003) wideband coding of speech at around 16kbit/s using adaptive multi-rate wideband (amr-wb). International telecommunication union, Geneve, Switzerland, 2003.
  15. 3GPP. Inband Tandem Free Operation (TFO) of speech codecs; Service description; Stage 3. TS 28.062, 3rd Generation Partnership Project (3GPP), 12 2009.
  16. Richard Musabe and Hadi Larijani. Cross-layer scheduling and resource allocation for heterogeneous traffic in 3g lte. Journal of Computer Networks and Communications, 2014.
  17. Freescale Semiconductor. Long term evolution protocol overview. White Paper, Document No. LTEPTCLOVWWP, Rev 0 Oct, 2008.
  18. 3GPP. Evolved Universal Terrestrial Radio Access (EUTRA); Physical channels and modulation. TS 36.211, 3rd Generation Partnership Project (3GPP), 03 2010.
  19. ITUT Rec. G. 107.1, wideband e-model. Int. Telecomm. Union, Geneva, 2011.
  20. Cristian Olariu, Micheal O Foghlu, Philip Perry, and Liam Murphy. Voip quality monitoring in lte femtocells. In Integrated Network Management (IM), 2011 IFIP/IEEE International Symposium on, pages 501–508. IEEE, 2011.
  21. Sebastian Moller, Alexander Raake, Nobuhiko Kitawaki, Akira Takahashi, and Marcel Waltermann. Impairment factor framework for wide-band speech codecs. Audio, Speech, and Language Processing, IEEE Transactions on, 14(6):1969–1976, 2006.
  22. Dakuri Chiranjeevi, V Mahender, B Kiran, and B Raja Kumar. Channel aware scheduling algorithms for 3gpp lte downlink.
  23. Agilent Technologies. Available:http://rfmw.em., May 2010.
  24. Agilent Technologies. Available:http://rfmw.em., May 2010.
  25. Chen-Nee Chuah and Randy H Katz. Characterizing packet audio streams from internet multimedia applications. In Communications, 2002. ICC 2002. IEEE International Conference on, volume 2, pages 1199–1203. IEEE, 2002.
  26. M. Reisslein, L. Karam, and P. Seeling. H. 264/AVC and SVC Video Trace Library: A Quick Reference Guide http://trace.eas. asu. edu. 2009.
  27. 3GPP. Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E-UTRAN). TR 25.913, 3rd Generation Partnership Project (3GPP), 12 2009.


Scheduling scheme, user perception, LTE, WB E-model, VoLTE, WB-MQS.

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