2D MARKOVIAN SS CODES FLATTEN TIME-FREQUENCY DISTRIBUTION OF SIGNALS IN ASYNCHRONOUS GABOR DIVISION CDMA SYSTEMS

被引：0

作者：

Kohda, Tohru ^{[1
]}

Jitsumatsu, Yutaka ^{[1
]}

Aihara, Kazuyuki ^{[2
]}

机构：

[1] Kyushu Univ, Dept Informat, Nishi Ku, 744 Motooka, Fukuoka 8190395, Japan

[2] Univ Tokyo, Inst Ind Sci, Meguro Ku, Tokyo 1538505, Japan

来源：

2011 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH, AND SIGNAL PROCESSING | 2011年

关键词：

Time and frequency offsets; Spread Spectrum code; CDMA; Ambiguity function; interference; COMMUNICATION;

D O I：

暂无

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

We propose a Gabor division (GD)-CDMA system which permits time and frequency offsets. Negatively correlated time-and frequency-domain spreading codes have shown to reduce the variances of mutual-and self-interferences. In this paper, we show that such negatively correlated spreading codes have another important property that they flatten the time-frequency energy distributions of signals in GD-CDMA system.

引用

页码：3140 / 3143

页数：4

共 41 条

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