A New Downlink Scheduling Algorithm Proposed for Real Time Traffic in LTE System

• Autorzy: Mahfoudi M. , EL Bekkali M. , Najid S. , Mazer S. , EL Ghazi M.

Identyfikatory

DOI

10.2478/eletel-2015-0054

• Języki publikacji: EN

Abstrakty

EN

The Third Generation Partnership Project (3GPP) has developed a new cellular standard based packet switching allowing high data rate, 100 Mbps in Downlink and 50 Mbps in Uplink, and having the flexibility to be used in different bandwidths ranging from 1.4 MHz up to 20 MHz, this standard is termed LTE (Long Term Evolution). Radio Resource Management (RRM) procedure is one of the key design roles for improving LTE system performance, Packet scheduling is one of the RRM mechanisms and it is responsible for radio resources allocation, However, Scheduling algorithms are not defined in 3GPP specifications. Therefore, it gets a track interests for researchers. In this paper we proposed a new LTE scheduling algorithm and we compared its performances with other well known algorithms such as Proportional Fairness (PF), Modified Largest Weighted Delay First (MLWDF), and Exponential Proportional Fairness (EXPPF) in downlink direction. The simulation results shows that the proposed scheduler satisfies the quality of service (QoS) requirements of the real-time traffic in terms of packet loss ratio (PLR), average throughput and packet delay. This paper also discusses the key issues of scheduling algorithms to be considered in future traffic requirements.

Słowa kluczowe

EN

QoS; real-time traffic; scheduling strategies

• Wydawca: Polish Academy of Sciences, Committee of Electronics and Telecommunication
• Czasopismo: International Journal of Electronics and Telecommunications
• Rocznik: 2015
• Tom: Vol. 61, No. 4
• Strony: 409--414
• Opis fizyczny: Bibliogr. 18 poz., rys., wykr.

Twórcy

autor

Mahfoudi M.

• LTTI Laboratory, USMBA University, Morocco, Fes

autor

EL Bekkali M.

• LTTI Laboratory, USMBA University, Morocco, Fes

autor

Najid S.

• National Institute of Post and Telecommunication, Morocco, Rabat

autor

Mazer S.

• LTTI Laboratory, USMBA University, Morocco, Fes

autor

EL Ghazi M.

• LTTI Laboratory, USMBA University, Morocco, Fes

Bibliografia

• [1] 3GPP TS 32.423 version 10.8.0, Digital cellular telecommunications system; LTE; Release 10, April 2014.
• [2] John Wiley & Sons ‘An Introduction to LTE: LTE, LTE-Advanced, SAE and 4G Mobile Communications, First Edition. ISBN: 9781119970385, Page (8-15) 2012.
• [3] 3GPP, “Technical specifications group radio access network - physical channel and modulation (release 8),” 3GPP TS 36.211, 2009.
• [4] T.Dikamba. “Downlink Scheduling in 3GPP Long Term Evolution “(LTE)”. MSc Thesis, TU Delft, March 2011.
• [5] Sun, Q., Tian, H., Dong, K., Zhou, R. and Zhang, P., "Packet Scheduling for Real-Time Traffic for Multiuser Downlink MIMO-OFDMA Systems," in IEEE Wireless Communications and Networking Conference, (2008), pp. 1849-1853.
• [6] G Piro, LTE-Sim - the LTE simulator. [OnLine] Available: [http://telematics.poliba.it/LTE-Sim].
• [7] 3GPP TS 23.002 V8.5.0, Network architecture (Release 8), June 2009.
• [8] Technical White paper: LTE eNodeB MAC Scheduler Introduction, by Roke Manor Research, 2009.
• [9] B. Sadiq, R. Madan and A. Sampath. "Downlink Scheduling for Multiclass Traffic in LTE". EURASIP Journal on Wirel. Comm. and Netw., vol. 2009 pp. 1-18, July. 2009.
• [10] 3GPP TR 25.913 V8.0.0 LTE: Requirements for Evolved UTRA (E-UTRA) and Evolved UTRAN (E-UTRAN) (Release 8), January 2009.
• [11] F. Capozzi, G. Piro, L. Grieco, G. Boggia, and P. Camarda, “Downlink packet scheduling in lte cellular networks: Key design issues and a survey,” Communications Surveys and Tutorials, IEEE, 2012.
• [12] Rabie K. Almatarneh, Mohamed H. Ahmed, Octavia A. Dobre,” Performance analysis of Proportional Fair Scheduling in OFDMA Wireless Systems, “in proc. of 72nd IEEE Vehicular Tech. Conference, 6-9 Sept., 2010.
• [13] R. Basukala, H. MohdRamli and K. Sandrasegaran. "Performance Analysis of EXP/PF and M-LWDF in Downlink 3GPP LTE System". IEEE F. Asian Himalayas Conf., pp. 1-5, Nov. 2009.
• [14] G. Piro, L. Grieco, G. Boggia, F. Capozzi, and P. Camarda. "Simulating lte cellular systems: an open source framework". IEEE Trans. Veh. Technol., vol. 60, no. 2, pp. 498-513, Oct 2010.
• [15] D.Gillman,” A Chernoff bound for random walks on expander graphs,” Proc. 34th IEEE Symp. On Foundations of Computer Science (FOCS93), vol. SIAM J. Comp., Vol. 27, No. 4,1998.
• [16] H. Ramli, R. Basukala, K. Sandrasegaran, and R. Patachaianand, “Performance of well known packet scheduling algorithms in the downlink 3GPP LTE system,” in Proc. of IEEE Malaysia International Conf. on Comm., MICC, Kuala Lumpur, Malaysia, 2009, pp. 815-820.
• [17] T. Blajić, D. Nogulić, M. Družijanić, Latency Improvements in 3G Long Term Evolution, Mobile Solutions. Ericsson Nikola Tesla d.d. (LATENCY), May 2007.
• [18] E. Dahlman, H. Ekström, A. Furuskär, Y. Jading, J. Karlsson, M. Lundevall, S. Parkvall, The 3G long-term evolution - radio interface concepts and performance evaluation, 63rd Vehicular Technology Conference, VTC 2006 - Spring, Vol. 1, pp. 137-141, IEEE, 2006.