Orthogonal multi-carrier DS-CDMA with frequency-domain equalization

被引：0

作者：

Tanaka, Ken ^{[1
]}

Tomeba, Hiromichi ^{[1
]}

Adachi, Fumiyuki ^{[1
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Dept Elect & Commun Engn, Sendai, Miyagi 9808579, Japan

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2008年 / E91B卷 / 04期

关键词：

orthogonal MC DS-CDMA; frequency-domain equalization; frequency diversity gain;

D O I：

10.1093/ietcom/e91-b.4.1055

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：

Orthogonal multi-carrier direct sequence code division multiple access (orthogonal MC DS-CDMA) is a combination of orthogonal frequency division multiplexing (OFDM) and time-domain spreading, while multi-carrier code division multiple access (MC-CDMA) is a combination of OFDM and frequency-domain spreading. In MC-CDMA, a good bit error rate (BER) performance can be achieved by using frequency-domain equalization (FDE), since the frequency diversity gain is obtained. On the other hand, the conventional orthogonal MC DS-CDMA fails to achieve any frequency diversity gain. In this paper, we propose a new orthogonal MC DS-CDMA that can obtain the frequency diversity gain by applying FDE. The conditional BER analysis is presented. The theoretical average BER performance in a frequency-selective Rayleigh fading channel is evaluated by the Monte-Carlo numerical computation method using the derived conditional BER and is confirmed by computer simulation of the orthogonal MC DS-CDMA signal transmission.

引用

页码：1055 / 1062

页数：8

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