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基于QoS保证的广播/组播OFDM系统资源分配策略

盛煜 彭木根 王文博

盛煜, 彭木根, 王文博. 基于QoS保证的广播/组播OFDM系统资源分配策略[J]. 电子与信息学报, 2008, 30(12): 2943-2946. doi: 10.3724/SP.J.1146.2007.00847
引用本文: 盛煜, 彭木根, 王文博. 基于QoS保证的广播/组播OFDM系统资源分配策略[J]. 电子与信息学报, 2008, 30(12): 2943-2946. doi: 10.3724/SP.J.1146.2007.00847
Sheng Yu, Peng Mu-Gen, Wang Wen-Bo. QoS-Aware Resource Allocation Algorithm for Broadcast/Multicast OFDM Systems[J]. Journal of Electronics and Information Technology, 2008, 30(12): 2943-2946. doi: 10.3724/SP.J.1146.2007.00847
Citation: Sheng Yu, Peng Mu-Gen, Wang Wen-Bo. QoS-Aware Resource Allocation Algorithm for Broadcast/Multicast OFDM Systems[J]. Journal of Electronics and Information Technology, 2008, 30(12): 2943-2946. doi: 10.3724/SP.J.1146.2007.00847

基于QoS保证的广播/组播OFDM系统资源分配策略

doi: 10.3724/SP.J.1146.2007.00847
基金项目: 

国家863计划项目(2006AA01Z257)和国家自然科学基金项目(60602058和60572120)资助课题

QoS-Aware Resource Allocation Algorithm for Broadcast/Multicast OFDM Systems

  • 摘要: 该文提出了一种基于服务质量(QoS)保证的次优广播/组播OFDM系统资源分配算法。算法在最优分配原则的基础上采用不同广播/组播业务目标速率作为约束条件,并以业务组中最差接收用户传输速率作为搜索目标,使得业务组中全部用户达到QoS要求,算法的公平性及有效性得到提高;同时采用时频格作为分配算法中的基本资源单位,以降低分配算法的复杂度。仿真结果表明,改进分配策略的系统吞吐量性能接近最优广播/组播分配算法,提高了广播/组播系统资源分配的公平性。
  • [1] Wong C Y, Cheng R S, and Letaief K Ben, et al.. MultiuserOFDM with adaptive subcarrier, bit and power allocation[J].IEEE J. on Select. Areas Commun.1999, 17(10):1747-1758 [2] Shen Z, Andrews J G, and Evans B L. Adaptive resourceallocation in multiuser OFDM systems with proportionalconstrains[J].IEEE Trans. on Wireless Communications.2005,4(6):2726-2737 [3] Willink T J and Wittke P H. Optimization and performanceevaluation of multicarrier transmission[J].IEEE Trans. onInform. Theory.1997, 43(2):426-440 [4] Suh C and Hwang C S. Dynamic subchannel and bitallocation for multicast OFDM systems. PIMRC04,Barcelona, Spain, 2004, 3: 2102-2106. [5] Ozbek B, Ruyet D L, and Khiari H. Adaptive resourceallocation for multicast OFDM systems with multipletransmit antennas. IEEE ICC'06, Istanbul, Turkey, 2006, 10:4409-4414. [6] Sheng Yu.[J].Peng Mugen, and Wang Wenbo. Adaptive trafficmultiplexing for MBMS in the UMTS system based on thescalable coding. CHINACOM06, Beijing, China.2006,:- [7] Zhang Xing, Wang Wenbo, and Liu Yuanan. An efficientmultiuser frequency-time grid (FTG) allocation algorithm forOFDM-based broadband wireless systems. PIMRC04,Barcelona, Spain, 2004, 3: 2092-2096. [8] Goldsmith A J and Chua S G. Variable-rate variable-powerMQAM for fading channels[J].IEEE Trans. on Commun.1997,45(10):1218-1230
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  • 被引次数: 0
出版历程
  • 收稿日期:  2007-06-01
  • 修回日期:  2007-10-08
  • 刊出日期:  2008-12-19

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