Receiver Design for Multicarrier CDMA Using Frequency-Domain Oversampling

被引：8

作者：

Shi, Qinghua

Guan, Yong Liang ^{[1
]}

Gong, Yi ^{[1
]}

Law, Choi Look ^{[1
]}

机构：

[1] Nanyang Technol Univ, Sch Elect & Elect Engn, Positioning & Wireless Technol Ctr, Singapore 639798, Singapore

来源：

IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2009年 / 8卷 / 05期

关键词：

Multicarrier CDMA; frequency domain oversampling; MMSE detection; MC-CDMA; INTERFERENCE SUPPRESSION; SYSTEM; PERFORMANCE; OFFSET;

D O I：

10.1109/TWC.2009.080310

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Based on the frequency-domain oversampling and minimum mean-square error (MMSE) principles, we propose three linear single-user detectors for downlink multicarrier code-division multiple-access (MC-CDMA) systems. We begin with an optimal linear MMSE detector, which is computationally demanding. To reduce the complexity, a two-stage MMSE detector and a diagonal one-stage MMSE detector are developed subsequently. Simulation results show that the proposed detectors can efficiently suppress the multiple access interference (MAI) caused by frequency-selective fading, near-far effect, frequency offset, and nonlinear power amplification.

引用

页码：2236 / 2241

页数：6

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