基于每用户MMSE频域均衡的DS-CDMA与MC-CDMA性能比较

Future Generation Communication and Networking (FGCN 2007) Pub Date : 2007-12-06 DOI:10.1109/FGCN.2007.30

T. Luo, Y. Guan, Gang Wu, Shaoqian Li, C. Law

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引用次数: 1

摘要

直接顺序码分多址(DS-CDMA)和多载波(MC-) CDMA是实现高速无线通信的两种重要CDMA方案。提出了一种基于单用户最小均方误差(MMSE)准则的DS-CDMA频域均衡线性最小均方误差(PU-MMSE)检测方法。计算机仿真结果表明，在频率选择分组衰落信道中，带FDE的DS-CDMA的PU-MMSE优于传统的PC- MMSE。采用连续干扰消除(SIC)技术可以进一步提高具有PU-MMSE FDE的DS-CDMA的性能。与具有PU-MMSE FDE的MC-CDMA相比，具有PU-MMSE FDE的DS-CDMA没有性能损失，且具有更低的峰均功率比(PAPR)。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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A Performance Comparison of DS-CDMA and MC-CDMA with Per-User MMSE Frequency Domain Equalization

Direct sequence code-division multiple access (DS-CDMA) and multicarrier (MC-) CDMA are two important CDMA schemes for high rate wireless communication. A novel linear per user minimum mean square error (PU-MMSE) detection technique for DS-CDMA with frequency domain equalization (FDE) based on the MMSE criterion applied per user is presented. It is shown by computer simulation that PU-MMSE outperforms conventional per carrier (PC-) MMSE for DS-CDMA with FDE in frequency selective block fading channel. The performance of DS-CDMA with PU-MMSE FDE can be further promoted by successive interference cancellation (SIC). Comparing to MC-CDMA with PU-MMSE FDE, DS-CDMA with PU-MMSE FDE has no performance loss and has much lower peak-to-average power ratio (PAPR).

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Future Generation Communication and Networking (FGCN 2007)

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