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联合MMSE和PIC的DS-CDMA单载波频域均衡 被引量：1

Single-carrier frequency domain equalization with joint MMSE and PIC in DS-CDMA
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摘要 重叠剪切频域均衡联合并行干扰消除(OC-PIC-FDE)是一种较低复杂度的实现方法,能取得良好的误码性能。基于该方法,通过联合MMSE(最小均方误差)和并行干扰对每个用户求出最优的MMSE频域均衡系数,实现对原方法的改进。仿真结果表明,改进后的方法与原OC-PIC-FDE相比,计算复杂度几乎相同,但误码性能却可以得到很大提高。 The single-carrier overlap-cut frequency-domain equalization （OC-FDE） proposed recently requires no GI （Guard interval） inserted between data blocks, having almost the same BER performance. OC-FDE combined with parallel inter- ference cancellation （PIC）, named OC-PIC-FDE is a low complexity frequency-domain implementation method, with good BER performance. Based on the method, this paper proposed the improved method, by inferring the MMSE factors related to the us- er, jointing MMSE and PIC. The simulation results show the improved method has the same complexity compared with OC-PIC- FDE, but the BER performance is better.
作者 唐富祥 黄联芬 齐心
机构地区 厦门大学信息科学与技术学院 清华大学无线技术研究中心
出处 《现代电子技术》 2013年第5期30-32,36,共4页 Modern Electronics Technique
基金 国家重大科技专项(2013zx03003012-004)
关键词 频率选择性衰落 并行干扰消除 频域均衡 重叠剪切 最小均方误差 直接扩频码分多址 frequency-selective fading PIC frequency-domain equalization overlap-cut MMSE DS-CMDA
分类号 TN929.533.34 [电子电信—通信与信息系统]
  • 相关文献

参考文献11

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共引文献5

同被引文献3

  • 1李小文,黄俊伟.TD-SCDMA第三代移动通信系统、信令及实现[M].北京:人民邮电出版社,2007:99-154.
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  • 3N.Benvenuto and G. Sostrato, "Joint Detection with Low Computational Complexity for Hybrid TD-CDMA Sys- tems", IEEE Journal on Selected Areas in Communications, Vol. 19, No. 1, Jan. 2001.

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现代电子技术
2013年 第5期

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