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差分调制在OFDM系统中的应用 被引量:2

DAPSK Modulation in OFDM System
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摘要 摘要正交频分复用(OFDM)被视为下一代无线通信的核心技术,与非差分调制(QAM)相比,差分调制(DAPSK)的最大优点是可完全不需要信道估计。本文对 DAPSK 在 OFDM 系统中的应用进行了仿真,分析了它在各种不同的信道环境下的性能,并与 QAM 做了比较。
出处 《中国数据通信》 2005年第1期40-46,共7页 China Data Communications
基金 国家高科技"863"计划(2002AA123046)资助项目。
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参考文献9

  • 1Richard van N. OFDM for Wireless Multimedia Communication. Boston: Artech House, 2000
  • 2IEEE 802.16: Air Interface for Fixed Broadband Wireless Access Systems, Dec 2001
  • 3May T, Rohling H, Engles V. Performace analysis of viterbi decoding for 64-DAPSK and 64-QAM modulated OFDM signals. IEEE Trans Commun, Vol. 44, No. 1, March 1998
  • 4Rohling H, May T, Bruninghaus K, Grunheid R. Broad-band OFDM radio transmission for mutilmedia applications. Proceedings of the IEEE, Vol 87, No 1, March 1998
  • 5Hsieh M H. Wei C H. Channel estimation for OFDM systems based on Comb-type pilot arrangement in frequency seclective fading channels. IEEE Trans on Consumer Electronics, Vol 44, No 1, Feb 1998
  • 6Simeone O. Pilot-based channel estimation for OFDM systems by tracking the delay-subspace. IEEE Transaction on Wireless Communication, Vol 3, No 1, January 2004
  • 7Erceg V, Hart KV S. Channel Models for Fixed Wireless Applications. IEEE 802.16a-03/01
  • 8Recommendation ITU-R.M.1225, Guidelines for Evaluation of Radio Transmission Technologies for IMT-2000. 1997
  • 9IEEE 802.16a: Air Interface for Fixed Broadband Wireless Access Systems-Amendment 2: Medium Access Control Modifications and Additional Physical Layer Specifications for 2-11 GHz, Jan 2003

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