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一种新颖的多用户OFDM资源分配算法 被引量：4

A novel power allocation algorithm in multiuser OFDM systems
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摘要 在多用户正交频分复用(OFDM)系统中设计一种新颖的子载波-功率分配方法来最大化用户数据传输速率.这个方案分成两部分,子载波分配和功率分配.其中,子载波分配方法是在信道容量矩阵中将信道容量最好的子载波首先进行分配,功率分配采用注水方法.研究和模拟结果表明,该算法在只改变各个子载波增益系数的基础上,基本保持了较低的复杂度,并且极大地提高了用户数据传输速率. A novel subcarrier power allocation algorithm was to maximize the user data transmission rate in multiuser OFDM systems.The algorithm was divided into two parts: subcarrier allocation and power allocation.Subcarrier allocation allocated subcarriers which had the best channel capacity to users;and power allocation used water-filling.Studies and simulation results showed that the algorithm by only changing the gain coefficients of subcarriers substantially maintains a low complexity,greatly improves the user data transmission rate.
作者 叶兰兰 李君 金宁
机构地区 中国计量学院信息工程学院
出处 《中国计量学院学报》 2012年第4期379-382,共4页 Journal of China Jiliang University
基金 浙江省自然科学基金资助项目(No.Y1090935)
关键词 多用户正交频分复用系统 子载波分配 功率分配 最大化用户数据传输速率 multiuser OFDM system subcarrier allocation power allocation maximum user data transmission rate
分类号 TN919.3 [电子电信—通信与信息系统]
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参考文献8

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同被引文献19

  • 1付驿如,吴玉成.OFDM中自适应比特及功率分配的分析[J].信号处理,2005,21(1):45-48. 被引量：2
  • 2张冬梅,徐友云,蔡跃明.OFDMA系统中线性注水功率分配算法[J].电子与信息学报,2007,29(6):1286-1289. 被引量：27
  • 3Papoutsis V D, Fraimis I G, Kotsopoulos S A. User Selection and Resource Allocation Algorithm with Fairness in MISO- OFDMA[J]. IEEE Communications Letter, 2010, 14(5): 411- 413.
  • 4Nader M, Keivan N, Mohammad G K. Downlink Radio Resource Allocation in OFDMA Spectrum Sharing Environ- ment with Partial Channel State Information[J]. IEEE Trans. on Wireless Communications, 2011, 10(10): 3482- 3495.
  • 5Zhang Yonghong, Leung C. A Distributed Algorithm for Resource Allocation in OFDM Cognitive Radio Systems[J]. IEEE Trans. on Vehicular Technology, 2011, 60(2): 546-554.
  • 6冯小兵. OFDMA系统中的动态资源分配[D]. 西安: 西安电子科技大学, 2004.
  • 7Fan Jiancun, Yin Qinye, Li G Y, et al. Adaptive Block-level Resource Allocation in OFDMA Networks[J]. IEEE Trans. on Wireless Communications, 2011, 10(11): 3966-3972.
  • 8Ermolova N Y, Makarevitch B. Performance of Practical Subcarrier Allocation Schemes for OFDMA[C]//Proceedings of the 18th International Symposium on Personal, Indoor and Mobile Radio Communications. [S. l.]: IEEE Press, 2007: 1-4.
  • 9Liu Tingting, Yang Chenyang, Yang Lieliang. A Low- complexity Subcarrier-power Allocation Scheme for Frequency-division Multiple-access System[J]. IEEE Trans. on Wireless Communications, 2010, 9(5): 1571-1576.
  • 10Awad M K, Mahinthan V, Mehrjoo M. A Dual-decom- position-based Resource Allocation for OFDMA Networks with Imperfect CSI[J]. IEEE Trans. on Vehicular Technology, 2010, 59(5): 2394-2403.

引证文献4

二级引证文献12

中国计量学院学报
2012年 第4期

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