前向分組數(shù)據(jù)業(yè)務(wù)中重傳分組優(yōu)先權(quán)的研究
Retransmission Priority Scheduling Algorithm for Forward Link Packet Data Service
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摘要: 該文研究了前向分組數(shù)據(jù)業(yè)務(wù)中應(yīng)用的調(diào)度算法，在對常見的幾種調(diào)度算法分析之后，提出一種新的調(diào)度算法。從理論和仿真兩方面的性能分析顯示，該算法通過適當(dāng)改變重傳分組的優(yōu)先權(quán)，在保證滿足公平性準(zhǔn)則的前提下，提高了系統(tǒng)吞吐量，降低了平均分組時(shí)延，改善了分組時(shí)延分布。
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關(guān)鍵詞:
- 調(diào)度算法; 正比公平; 輪循算法; 最大C/I算法
Abstract: Forward link packet data service scheduling algorithm in mobile communication systems is researched in this paper. After analyzing a few kinds of familiar scheduling algorithms, a new scheduling algorithm is proposed. Both the theoretical analysis and the simulation results shows that this algorithm takes on several advantages. On the premise of satisfying the fairness criteria, it can increase the system throughput and decrease the average packet delay. -
3GPP2, 1xEV-DV evaluation methodology-Strawman (Rev.13), WG5 Evaluation Ad hoc, Feb.13, 2001[2]3GPP2, Physical layer standard for cdma2000 spread spectrum systems(Release C), C.S0002-C,version 1.0, May 28, 2002.[3]P. Bender, et al.. CDMA/HDR: A bandwidth-efficient high-speed wireless data service for nomadic users. IEEE Communications Magazine, 2000, 38(7): 70-77.[4]3GPP2, cdma2000 high rate packet data air interface specification, C.S0024, Version 2.0, Oct.27, 2000.Jalali A, Padovani R, Pankaj R. Data throughput of CDMA-HDR, a high efficiency data rate personal communication wireless system, VTC 2000-Spring, Tokyo, 2000: 1854-1858.[5]Holtzman J M. CDMA forward link waterfilling power control. Proc. VTC2000-Spring, Tokyo,2000: 1663-1667.[6]Rappaport T S. Wireless Communications Principles and Practice. New Jersey: Prentice Hall,Inc., 1996, Ch.3.[7]Viterbi A J. CDMA: Principles of Spread Spectrum Communication. Boston: Addison-WeSley Publish Company, 1995, Ch.6. -
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