Multi-carrier modulation schemes for frequency-selective fading channels

被引：0
|
作者：
Wetzker, G [1 ]
Dukek, M [1 ]
Ernst, H [1 ]
Jondral, F [1 ]
机构：
[1] Univ Karlsruhe, Inst Nachrichtentech, D-76128 Karlsruhe, Germany
来源：
ICUPC '98 - IEEE 1998 INTERNATIONAL CONFERENCE ON UNIVERSAL PERSONAL COMMUNICATIONS, VOLS 1 AND 2 | 1998年 / 1-2卷
关键词：
D O I：
暂无
中图分类号：
TN [电子技术、通信技术];
学科分类号：
0809 ;
摘要：
The performance of orthogonal frequency division multiplexing (OFDM) modulation schemes using differential (DPSK-OFDM), coherent (PSK-OFDM) data modulation and multi-carrier code division multiple access (MC-CDMA) are compared for time-variant and time-invariant multipath channels. Ignoring the CDMA aspect, MC-CDMA can be viewed as a novel modulation technique. While coherent OFDM and MC-CDMA require channel equalization, differential OFDM can work without it. As a channel equalization method a new controlled equalization scheme is introduced and investigated by simulations. MC-CDMA with controlled equalization is shown to be the most suited multi-carrier modulation principle over time-variant and time-invariant frequency-selective channels.
引用
收藏
页码：939 / 943
页数：5
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