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多用户OFDM系统

Multi-user OFDM System
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摘要 通过对多用户情况下正交频分复用技术 (OFDM)的多载波传输系统 (包括OFDM -FDMA ,OFDM-TDMA和OFDM -CDMA)的分析 ,提出了在传统多用户情况下的OFDM -FDMA系统上对子载波进行优化的分配方案 ,并与各种多载波技术频率选择性衰落信道的环境下的传输性能进行了研究比较 。 This paper analyses the OFDM-FDMA, OFDM-TDAM and OFDM-CDMA transmission systems, which is based on multi user OFDM. Then, the paper presents the optimum the carrier's allocation scheme in multi user OFDM-FDMA system, whose performance of transmission is compared with each other in the rayleigh fading channel. Simulation results are shown that the optimum OFDM-FDMA system is better than others.
机构地区 上海大学
出处 《中国有线电视》 北大核心 2004年第9期93-96,共4页 China Digital Cable TV
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参考文献4

  • 1Rohling H, Grunheid R.Performance of an OFDM-TDMA mobile communication system[C]. Vehicular Technology Conference:Mobile Technology for the Human Race,1996,46(3):1589-1593.
  • 2S Hara, R Prasad. Overview of Multicarrier CDMA[J]. IEEE Communications Magazine, 1997:126-133.
  • 3W Rhee, J Cioffi. Increase in capacity of multiuser OFDM system using dynamic subchannel allocation[J]. IEEE 51st Vehicular Technology Conference Proceedings, 2000,(2):1085 -1089.
  • 4C Wong, R Cheng, K Letaief, R Murch. Multiuser OFDM with Adaptive Subcarrier, Bit, and Power Allocation[J]. IEEE Jornal of Selected Areas in Comm,1999,17(10):1747-1758.

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