Abstract
In this paper, previously performed UMTS studies have been extended to enhanced UMTS, and combined with several scheduling algorithms (ref. [1,2]). Scheduling algorithms for W-CDMA systems ranging from C/I based scheduling to Round-Robin scheduling are presented and discussed. We also include a trade-off between these two extreme methods of scheduling: Fair channel-dependent scheduling. All these scheduling algorithms have been implemented in a network simulator in ns-2, employing input trace files of SNRs, modeled from link-level simulation results. The network-level simulation results indeed display that the advantages of both extremes in scheduling algorithms have been combined in the new algorithm: a good fairness, comparable to that of Round-Robin scheduling, together with an efficient use of resources, as seen in C/I based scheduling.
Keywords
- Schedule Algorithm
- Transmission Control Protocol
- Channel Quality Indicator
- Transmission Time Interval
- Radio Link Control
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.
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Lo, A., et al.: Performance of TCP over UMTS Common and Dedicated Channels. In: IST Mobile & Wireless Communications Summit 2003, Aveiro, Portugal, June 2003, pp. 128–142 (2003)
de Bruin, I., et al.: Fair Channel-Dependent Scheduling in CDMA Systems. In: 12th IST Summit on Mobile and Wireless Communications, Aveiro, Portugal, June 2003, pp. 737–741 (2003)
EURANE (Enhanced UMTS Radio Access Networks Extensions for ns-2), http://www.tiwmc.nl/eurane/
3GPP TS 25.214 V5.5.0, “Physical layer procedures (FDD), Release 5”
Roberts, S.W.: Control chart test based on geometric moving averages. Technometrics 1, 239–250 (1959)
Brouwer, F., et al.: Usage of Link Level Performance indicators for HSDPA Network-Level Simulations in E-UMTS. accepted for presentation at ISSSTA, Sydney (2004)
De Bruin, I., et al.: HSDPA Link Adaptation and Hybrid ARQ characteristics and its use in network-level simulations, submitted to IST Mobile Summit 2004 (2004)
3GPP TSG-RAN Working Group 4, R4-020612, Revised HSDPA CQI Proposal (April 3-5, 2002)
Gudmundson, M.: Correlation Model for Shadow Fading in Mobile Radio Systems. Electronics Letters 27(23), 2145–2146 (1991)
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de Bruin, I. (2004). Network-Level Simulation Results of Fair Channel-Dependent Scheduling in Enhanced UMTS. In: Niemegeers, I., de Groot, S.H. (eds) Personal Wireless Communications. PWC 2004. Lecture Notes in Computer Science, vol 3260. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-30199-8_25
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DOI: https://doi.org/10.1007/978-3-540-30199-8_25
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-540-23162-2
Online ISBN: 978-3-540-30199-8
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