A low-power Digital Matched Filter for Spread-Spectrum systems

被引：0
|
作者：
Goto, S [1 ]
Yamada, T [1 ]
Takayama, N [1 ]
Matsushita, Y [1 ]
Harada, Y [1 ]
Yasuura, H [1 ]
机构：
[1] Sanyo Elect Co Ltd, Gifu 5030195, Japan
来源：
ISLPED'02: PROCEEDINGS OF THE 2002 INTERNATIONAL SYMPOSIUM ON LOW POWER ELECTRONICS AND DESIGN | 2002年
关键词：
Matched Filter; Spread-Spectrum; CDMA; VLSI; low power;
D O I：
暂无
中图分类号：
TP3 [计算技术、计算机技术];
学科分类号：
0812 ;
摘要：
A Digital Matched Filter (DMF) is an essential device for Direct-Sequence Spread-Spectrum (DS-SS) communication systems. Reducing the power consumption of a DMF is especially critical for battery-powered terminals. The reception registers and the correlation-calculating unit dissipate the majority of the power in a DMF. In this paper we discuss this problem and propose a low-power architectural approach to a DMF. The total switching activity factor and the switched capacitance are reduced. As a result of power analysis at the gate level, the implementation of the proposed architecture in a standard 0.18-mum CMOS technology achieved a reduction in the power consumption of more than 70%.
引用
收藏
页码：301 / 306
页数：6
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