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一种基于PN序列的OFDMA上行链路参数估计和信号检测方法

党军宏 邵玮炜

党军宏, 邵玮炜. 一种基于PN序列的OFDMA上行链路参数估计和信号检测方法[J]. 电子与信息学报, 2008, 30(1): 38-43. doi: 10.3724/SP.J.1146.2006.00774
引用本文: 党军宏, 邵玮炜. 一种基于PN序列的OFDMA上行链路参数估计和信号检测方法[J]. 电子与信息学报, 2008, 30(1): 38-43. doi: 10.3724/SP.J.1146.2006.00774
Dang Jun-hong, Shao Wei-wei. Approach to Parameters Estimation and Signal Detection for OFDMA Uplink Based on PN Sequence[J]. Journal of Electronics & Information Technology, 2008, 30(1): 38-43. doi: 10.3724/SP.J.1146.2006.00774
Citation: Dang Jun-hong, Shao Wei-wei. Approach to Parameters Estimation and Signal Detection for OFDMA Uplink Based on PN Sequence[J]. Journal of Electronics & Information Technology, 2008, 30(1): 38-43. doi: 10.3724/SP.J.1146.2006.00774

一种基于PN序列的OFDMA上行链路参数估计和信号检测方法

doi: 10.3724/SP.J.1146.2006.00774

Approach to Parameters Estimation and Signal Detection for OFDMA Uplink Based on PN Sequence

  • 摘要: 该文研究了OFDMA上行链路的频偏信道参数估计和信号检测问题,设计了一种OFDMA上行链路发射信号帧结构,信号帧的帧头由PN序列构成;提出了基于PN序列的频偏信道参数估计算法;并根据频偏信道参数采用时域最小均方误差检测算法进行信号检测。仿真表明:该文提出的频偏信道估计算法充分利用PN序列的相关特性,具有良好的抗噪特性、衰落信道适应性和高的估计精度;而时域最小均方误差信号检测算法也具有较好的误比特率性能。
  • IEEE 802.16-2001 Air Interface for Fixed BroadbandWireless Access Systems,IEEE 802.16-2004 Medium AccessControl Modifications and Additional Physical LayerSpecifications for 2-11 GHz.[2]Coleri S, Ergen M, Puri A, and Bahai A. Channel estimationtechniques based on pilot arrangement in OFDM systems [J],IEEE Trans[J].on Broadcasting.2002, 48(3):223-229[3]Kim Y H, Hahm Y K, and Jung H J. An efficient frequencyoffset estimator for timing and frequency synchronization inOFDM systems [A]. IEEE Pacific Rim Conference onCommunications, Computer and Signal Processing, Victoria,BC, Canada, 22-24 Aug 1999: 580-583.[4]Van de Beek J J, Sandell M, and Borjesson P O. MLestimation of time and frequency offset in OFDM systems [J].IEEE Trans. on Signal Processing.1997, 45(7):1800-1805[5]Chen Biao. ML estimation of OFDM carrier frequency offset[J].IEEE Signal Processing Letters.2002, 9(4):123-126[6]Kimura R, Funada R, and Harada H. Performance evaluationof time alignment control under high-mobility environmentfor dynamic parameter controlled OF/TDMA[J]. IEICETrans. on Communication, 2005, E88-B(2): 541-551.[7]Van de Beek J J, Borjesson P O, Boucheret M L, LandstromD, Arenas J M, Odling P, Ostberg C, Wahlqvist M, andWilson S K. A time and frequency synchronization scheme formultiuser OFDM[J].IEEE J. Sel. Areas Commun.1999, 17(11):1900-1914
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出版历程
  • 收稿日期:  2006-06-05
  • 修回日期:  2006-11-28
  • 刊出日期:  2008-01-19

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