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一种改进的多天线OFDM系统及其性能分析 被引量:1

Antenna Diversity for an Improved OFDM System
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摘要 提出一种改进的 OFDM系统 ,把 N点 FFT分为 n组 ,同时把空间分集应用于该系统中 ,利用正交设计理论安排发送数据符号 ,在接收端采用适当的合并方式最大限度地获得信号功率 .通过分析与仿真计算可以看到 ,多天线分集可以显著地改善 OFDM系统的性能 . An improved OFDM system is proposed. N-points-FFT is divided into n groups. The symbol is arranged according to orthogonal design theory at transmitter, and the multiantenna can achieve the maximum signal power by appropriate combination method at receiver. The performance is improved greatly by analysis and numerical simulation.
出处 《北京邮电大学学报》 EI CAS CSCD 北大核心 2001年第1期84-87,共4页 Journal of Beijing University of Posts and Telecommunications
基金 国家自然科学基金!资助项目 ( 69872 0 0 8)
关键词 正交频分复用 分集技术 无线 无线通信 FDM diversity FFT
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参考文献3

  • 1[1] Burr A G. Performance analysis of COFDM for broadband transmission on a fading multipath channel[J].Wireless Personal Communication,1998(10):3-17.
  • 2[2] Alamouti S M.A simple transmit diversity technique for wireless communications[J].IEEE Journal on Select Areas in Communications,1998,16(8):1 451-1 458.
  • 3[3] Tarokh V,Jafarkhani H,Calderbank A R.Space-time block coding for wireless communications: performance results[J].IEEE JSAC, 1999,17(3):451-460.

同被引文献6

  • 1A G Burr.Performance analysis of COFDM fo r broadband transmission on a fading multipath channel[J].Wireless Personal Communication,1998,(10):3-17.
  • 2B Lu,X Wang,K R Narayanan.LDPC-based space-time coded OFDM systems over correlated fading channels:performance analysis and receiver design[J].IEEE Trans Commun,2002,50(1):74-88.
  • 3Z Liu,Y Xin,G B Giannakis.Space-time-frequency coded OFDM over frequency-selective fading channels[J].IEEE Trans SP,2002,50(10):2465-2476.
  • 4S M Alamouti.A Simple Transmit Diversity Technique for Wireless Communications[J].IEEE JSAC,1998,16(8):1451-1458.
  • 5V Tarokh,H Jafarkhani,A R Calderbank.Space-time Block Codes for Wireless Communications:Performance Results[J].IEEE JSAC,1999,17(3):451-460.
  • 6V Tarokh,H Jafarkhani,A R Calderbank.Space-time block codes from orthogonal designs[J].IEEE Trans Inform Theory,1999,45(5):1456-1467.

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