Efficient Use of the Spectrum

被引：6

作者：

Kitsunezuka, Masaki ^{[1
]}

Kunihiro, Kazuaki ^{[1
]}

Fukaishi, Muneo ^{[1
]}

机构：

[1] NEC Corp Ltd, Kanagawa, Japan

来源：

IEEE MICROWAVE MAGAZINE | 2012年 / 13卷 / 01期

关键词：

COGNITIVE RADIO; RECEIVER; CMOS;

D O I：

10.1109/MMM.2011.2173982

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：

Demand for efficient operation of radio frequency (RF) devices with limited resources, such as energy and frequency spectrum, is increasing as a variety of wireless applications quickly become more popular. Cognitive radio (CR), which can sense a radio environment and use an unoccupied spectrum, is thought to be a drastic solution for problems such as battery life shortage and/ or spectrum scarcity. This article presents a brief overview of CR systems and describes design challenges for implementing RF integrated circuits (RFICs). A design example of a wideband CMOS receiver for such systems is also discussed. © 2006 IEEE.

引用

收藏

页码：55 / 63

页数：9

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