期刊文献+
任意字段
题名或关键词
题名
关键词
文摘
作者
第一作者
机构
刊名
分类号
参考文献
作者简介
基金资助
栏目信息

多用户OSTBC-OFDM系统的自适应子载波分配研究 被引量：1

Adaptive Subcarrier Allocation for Multi-user OSTBC-OFDM Systems
下载PDF
导出
摘要 研究了基于正交空时分组码的多用户OFDM系统的自适应子载波分配算法.首先从性能角度出发,在保证用户误码率约束的前提下,以总的发射功率最小为目标,推导了具有普遍意义的OSTBC-OFDM的子载波分配通式.考虑到实际应用系统中效率与公平的折中,对各个用户定义相应的速率约束,以增加功率最小为原则,给出了改进的兼顾公平的子载波分配算法的具体步骤.数值仿真结果证明,自适应子载波分配能改善OSTBC-OFDM系统的误码率性能,且兼顾公平的算法需要一定的性能损失为代价. An adaptive subcarrier allocation algorithm for multiuser OSTBC-OFDM system is discussed in this paper. Aimed at minimizing the overall transmit power subjected to meet the target BER, an adaptive subcarrier general allocation algorithm with effficiency-priority is proposed. To achieve a desirable tradeoff between efficiency and fairness, all users are given a guaranteed transmission rate. An amendatory four-step algorithm with fairness constraint is described. Simulation results show that the proposed algorithms can improve BER performance of the OSTBC-OFDM system.
作者 李黎 朱光喜
机构地区 华中科技大学电子与信息工程系
出处 《应用科学学报》 CAS CSCD 北大核心 2007年第1期1-5,共5页 Journal of Applied Sciences
基金 国家自然科学基金(60496310) 国家"863"高技术研究发展计划(2003AA12331005)资助项目
关键词 正交频分复用 空时分组码 多天线输入输出 子载波分配 orthogonal frequency division multiplexing （OFDM） space time block coding （STBC） multi-input multi-output （MIMO） subcarrier allocation
分类号 TN92 [电子电信—通信与信息系统] TN911 [电子电信—通信与信息系统]
  • 相关文献

参考文献11

  • 1TAROKH V,JAFARKHANI H,CALDERBANK A R.Space-time block codes from orthogonal designs[J].IEEE Transaction on Information Theory,1999,45 (5):1456-1467.
  • 2ALAMOUTI S M.A simple transmit diversity technique for wireless communications[J].IEEE Journal Selection Areas in Communication,1998,16(8):1451-1458.
  • 3LU B,WANG X.Space-time code design in OFDM systems[C]//GLOBECOM.San Francisco:IEEE Press,2000:1000-1004.
  • 4吴军力,侯晓林,尹长川,乐光新.瑞利衰落信道下OFDM系统多址接入方案的性能比较[J].重庆邮电学院学报（自然科学版）,2004,16(4):1-4. 被引量：2
  • 5WONG C Y,CHENG R S,LETAIEF K B.Multiuser OFDM with adaptive subcarrier,bit,and power allocation[J].IEEE Journal on Selected Areas in Comm,1999,17 (10):1747-1758.
  • 6RHEE W,CIOFFI J W.Increase in capacity of multiuser OFDM system using dynamic subchannel allocation[C]//VTC'00 spring.Tokyo:IEEE Press,2000:1085-1089.
  • 7WANG Yongxue,WEI Gang.Adaptive subcarrier and bit allocation for multiuser OFDM system based on genetic algorithm[C]//ICCCAS.Hong Kong:IEEE Press,2005:242-246.
  • 8ZHANG Yingjun,LETAIEF K B.Optimizing power and resource management for multiuser MIMO/OFDM systems[C]//GLOBECOM.San Francisco:IEEE Press,2003:179-183.
  • 9PAN Chengkang,XU Youyun.Adaptive subcarrier and power allocation for multiuser MIMO-OFDM systems[C]//ICC Seoul:IEEE Press,2005:2631-2635.
  • 10GORE D,PAULRAJ A.MIMO antenna subset selection with space-time coding[J].IEEE Transaction on Signal Processing,2002,50(10):2580-2588.

二级参考文献12

  • 1BINGHAM J A C.Multicarrier modulation for Data transmission.an idea whose time has come[J].IEEE Commun Magazine,1990,28(5):5-14.
  • 2LAWREY E.Adaptive frequency hopping for Multiuser OFDM[A].ICICS[C].1999.
  • 3HARA S,PRASAD R.Overview of multicarrier CDMA[A].IEEE Commun Magazine,1997,35(12):126-133.
  • 4THOMAS Keller,LAJOS Hanzo.Adaptive multicarrier modulation: a convenient framework for time-frequency processing in wireless communication[J].IEEE Proceedings of the IEEE,2000,88(5):611-638.
  • 5ZOU W Y,WU Y.COFDM: An overview[J].IEEE Trans. on Broadcasting,1995,44(1):1-8.
  • 6CIMINI L T.Analysis and simulation of a digital mobile channel using orthogonal frequency division multiplexing[J].IEEE Trans. on Commun.1985,33(7):665-675.
  • 7LAWREY E.Multiuser OFDM[A].ISSPA[C].1999,2:761-764.
  • 8ROHLING H,GRüNHEID R.Performance comparison of different multiple access schemes for the downlink of an OFDM communication system[A].Proc.VTC[C]. 1997,1365-1369.
  • 9GRüNHEID R,ROHLING H.Adaptive modulation and multiple access for the OFDM transmission technique[J].Wireless Personal Commun,2000,13:5-13.
  • 10李向宁,谈振辉.OFDM基本原理及其在移动通信中的应用[J].重庆邮电学院学报（自然科学版）,2003,15(2):25-30. 被引量：32

共引文献1

同被引文献18

  • 1WU Tong QU Xin-chun WANG Ying.Resource optimization in distributed cooperative multi-relay system based on STBC-OFDM[J].The Journal of China Universities of Posts and Telecommunications,2007,14(2):1-6. 被引量：2
  • 2JAFARKHANI H. A quasi-orthogonal space-time block code[J]. IEEE Transactions on Communications, 2001, 49(1): 1-4.
  • 3JANKIRAMAN M. Space-time codes and MIMO systems[M]. Norwood, MA: Artech House, 2004.
  • 4LEE C. Antenna selection for space-time block coded systems with imperfect channel knowledge[D]. Kinston: Queen’s University, 2006.
  • 5VU M, PAULRAJ A. On the capacity of MIMO wireless channels with dynamic CSIT[J]. IEEE Journal on Selected Areas in Communications, 2007, 25(7): 1269-1283.
  • 6RIZOGIANNIS C, KOFIDIS E, PAPADIAS C B, et al. Semi-blind maximum-likelihood joint channel/data estimation for correlated channels in multiuser MIMO networks [ J ]. Signal Processing, 2010, 90(4) : 1209 - 1224.
  • 7VU M, PAULRAJ A. A robust transmit CSI framework with applications in MIMO wireless precoding [ C ]// Proceedings of 39th Asilomar Conference on Signals, Systems and Computers. New York: IEEE, 2005:623 -627.
  • 8YE S, BLUM R S, CLIMINI L J,et al. Adaptive modulation for variable-rate OFDM systems with imperfect channel information [ C ]//IEEE 55th Vehicular Technology Conference. New York : IEEE, 2002 : 767 -771.
  • 9HAYKIN S, MOHER M. Modem wireless [M] New York : Pearson Prentice-Hall, 2005 : 36 - 63.
  • 10BEHNAMFAR F. Single and multiple antenna communication systems: Performance analysis and joint source-channel coding [ D ] . Kinston : Queen' s University, 2004.

引证文献1

二级引证文献2

应用科学学报
2007年 第1期

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部