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在OFDM系统中应用时间分集对抗快衰落 被引量:4

Applying time diversity to overcome fast fading for OFDM system
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摘要 针对快衰落使得OFDM 系统的误码率出现严重的地板效应这一问题,在广泛用于非视距移动环境建模的Jakes谱快衰落Rayleigh 信道的条件下,对Doppler 扩展所造成的子载波干扰进行了理论分析,并且对在快衰落信道条件下OFDM 系统应用时间分集来提高系统性能进行了分析和仿真。 The OFDM system exhibits a limiting BER floor under fast fading condition. The intercarrier interference of OFDM system over fast fading rayleigh channel is analyzed on the basis of jakes spectrum model, and applying time diversity to overcome fast fading for OFDM system is analyzed and simulated.
出处 《计算机工程与设计》 CSCD 北大核心 2005年第3期577-579,共3页 Computer Engineering and Design
基金 国家自然科学基金项目(90104018)
关键词 快衰落信道 OFDM系统 分集 RAYLEIGH信道 地板效应 子载波 误码率 移动环境 系统性能 建模 OFDM fast fading rayleigh channel time diversity
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参考文献12

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同被引文献18

  • 1潘立军,刘泽民.两种改进的盲均衡算法[J].电路与系统学报,2006,11(2):141-144. 被引量:19
  • 2孙兰清,葛临东,刘锋.常模类盲均衡算法的研究[J].电视技术,2006,30(10):12-14. 被引量:10
  • 3饶伟,郭业才.基于统计特性均衡准则的联合盲均衡算法[J].安徽理工大学学报(自然科学版),2006,26(4):55-59. 被引量:3
  • 4郭业才.基于统计特性均衡准则的线性符号判决反馈盲均衡算法[J].系统仿真学报,2007,19(11):2413-2416. 被引量:7
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