Advanced Search
Volume 31 Issue 4
Dec.  2010
Turn off MathJax
Article Contents
Liu Min, Xu Da-zhuan. Adaptive Bandwidth and Sub-carrier Allocation for OFDMA Downlinks[J]. Journal of Electronics & Information Technology, 2009, 31(4): 907-910. doi: 10.3724/SP.J.1146.2007.01786
Citation: Liu Min, Xu Da-zhuan. Adaptive Bandwidth and Sub-carrier Allocation for OFDMA Downlinks[J]. Journal of Electronics & Information Technology, 2009, 31(4): 907-910. doi: 10.3724/SP.J.1146.2007.01786

Adaptive Bandwidth and Sub-carrier Allocation for OFDMA Downlinks

doi: 10.3724/SP.J.1146.2007.01786
  • Received Date: 2007-11-15
  • Rev Recd Date: 2009-01-14
  • Publish Date: 2009-04-19
  • This paper addresses adaptive resource allocation for OFDMA downlinks. A sub-optimal two-step sub-carrier allocation scheme is proposed to minimize the outage probability for a total transmit power budget. A characteristic of bandwidth and sub-carrier allocation is analyzed, and a two-step sub-carrier allocation scheme is proposed, which distributes bandwidth and sub-carriers among users based on available resource, QoS requirements and channel state information. Simulation results demonstrate that the proposed algorithms can achieve low outage probability while meet the total power budget.
  • loading
  • IEEE standard for local and metropolitan area networks[s],Part 16, Amendment 2 and Corrigendum 1. 2006.[2]Berezdivin R, Breinig R, and Topp R. Next-generationwireless communications: concepts and technologies[J]. IEEECommunication Magazine, 2002, 43(4): 108-116.[3]Zhang Y and Letaief K B. Multiuser adaptive subcarrierand-bit allocation with adaptive cell selection for OFDMsystems[J].IEEE Trans. on Wireless Communications.2004,3(5):1566-1575[4]Wang J, Wang Y, and Yang X, et al.. Adaptive subcarrier andbit allocation for multiuser OFDM networks[C]. 2006 AsiaPacific Conference on Communications, Busan, South Korea,31 Aug.-1 Sept. 2006: 5.[5]Kivanc D. Resource Allocation for MulticarrierCommunications[D]. [Ph.D. dissertation], Washington:University of Washington, 2005.[6]Hamouda S, Godlewski P, and Tabbane S. Improved reusepartitioning and power control for downlink multi-cellOFDMA system[C]. The 2006 workshop on Broadbandwireless access for ubiquitous networking, Alghero, Italy,2006: 1189-1193.[7]Kwon H, Lee W, and Lee B. Low-overhead resourceallocation with load balancing in multi-cell OFDMAsystems[C]. 2005 IEEE 61st Vehicular TechnologyConference - VTC 2005-Spring Stockholm: Paving the Pathfor a Wireless Future. Stockholm, Sweden, May 30-June 12005: 3063-3067.[8]Ermolova N and Makarevitch B. Low complexity adaptivepower and subcarrier allocation for OFDMA[J].IEEE Trans.on Wireless Communications.2007, 6(2):433-437
  • 加载中

Catalog

    通讯作者: 陈斌, bchen63@163.com
    • 1. 

      沈阳化工大学材料科学与工程学院 沈阳 110142

    1. 本站搜索
    2. 百度学术搜索
    3. 万方数据库搜索
    4. CNKI搜索

    Article Metrics

    Article views (3207) PDF downloads(839) Cited by()
    Proportional views
    Related

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return