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单载波频域均衡与多载波OFDM误码性能的理论比较

刘谦雷 杨绿溪

刘谦雷, 杨绿溪. 单载波频域均衡与多载波OFDM误码性能的理论比较[J]. 电子与信息学报, 2005, 27(3): 411-414.
引用本文: 刘谦雷, 杨绿溪. 单载波频域均衡与多载波OFDM误码性能的理论比较[J]. 电子与信息学报, 2005, 27(3): 411-414.
Liu Qian-lei, Yang Lu-xi. Theoretical Comparison of BER Performance between Single-Carrier Frequency-Domain Equalization and Multi-carrier OFDM[J]. Journal of Electronics & Information Technology, 2005, 27(3): 411-414.
Citation: Liu Qian-lei, Yang Lu-xi. Theoretical Comparison of BER Performance between Single-Carrier Frequency-Domain Equalization and Multi-carrier OFDM[J]. Journal of Electronics & Information Technology, 2005, 27(3): 411-414.

单载波频域均衡与多载波OFDM误码性能的理论比较

Theoretical Comparison of BER Performance between Single-Carrier Frequency-Domain Equalization and Multi-carrier OFDM

  • 摘要: 单载波频域均衡(SC-FDE)和多载波正交频分复用(OFDM)是数字通信中用于克服多径衰落的两种技术。本文通过理论推导对这两种技术在高斯白噪声通信信道巾的误码性能进行了比较。利用高斯分布尾部概率的数值变化特性,本文推导出如下结论:在低信噪比条件下,OFDM的误码性能略优于SC-FDE,而在高信噪比条件下,SC-FDE则能取得显著优于OFDM的误码性能。这一结论对于通信系统的设计具有重要的参考价值。
  • Cimini L J. Analysis and simulation of a digital mobile channel using orthogonal frequency division multiplexing[J].IEEE Trans. on Communications.1985, 33(7):665-675[2]Falconer D, Ariyavisitakul S L, et al.. Frequency domain equalization for single-carrier broadband wireless systems. IEEE Communications Magazine, 2002, 40(4): 58-66.[3]Al-Dhahir N. Single-carrier frequency-domain equalization for space-time block-coded transmissions over frequency- selective fading channels[J].IEEE Communications Letters.2001, 5(7):304-306[4]Dinis G R, et al.. Comparison of two modulation choices for broadband wireless communications. IEEE VTC 2000-Spring,Tokyo, 2000: 1300-1305.Carron G , Deneire L, et al.. Comparison of two modulation techniques using frequency domain processing in interference limited home networks. IEEE International Conference on Consumer Electronics, Los Angles, 2000: 296-297.[5]Proakis J G . Digital Communications(3rd edition). New York:McGraw-Hill, 1995: 257-284.
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出版历程
  • 收稿日期:  2003-12-04
  • 修回日期:  2004-03-08
  • 刊出日期:  2005-03-19

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