A 122-mW Low-Power Multiresolution Spectrum-Sensing IC With Self-Deactivated Partial Swing Techniques

Author

Song, Taejoong ; Park, Jongmin ; Lee, Sang Min ; Choi, Jaehyouk ; Kim, Kihong ; Lee, Chang-Ho ; Lim, Kyutae ; Laskar, Joy

Author_Institution

Georgia Electron. Design Center, Georgia Inst. of Technol., Atlanta, GA, USA

Volume

57

Issue

3

fYear

2010

fDate

3/1/2010 12:00:00 AM

Firstpage

188

Lastpage

192

Abstract

A low-power multiresolution spectrum-sensing (LP-MRSS) IC utilizing self-deactivated partial swing techniques is fabricated in 0.18-??m complementary metal-oxide-CMOS technology. The LP-MRSS is composed of a low-power digital window generator, analog correlators, low-power pipeline analog-to-digital converters, and a fast-sweeping frequency synthesizer. The LP-MRSS dissipates 122 mW at a 1.8-V supply voltage achieving an approximately 33% power reduction over the previous MRSS IC.

Keywords

CMOS integrated circuits; analogue-digital conversion; frequency synthesizers; low-power electronics; CMOS; analog correlators; complementary metal-oxide technology; fast-sweeping frequency synthesizer; low-power digital window generator; low-power multiresolution spectrum-sensing IC; low-power pipeline analog-to-digital converters; power 122 mW; self-deactivated partial swing techniques; size 0.18 mum; voltage 1.8 V; Cognitive radio (CR); digital window generator (DWG); low-power random access memory (RAM); multiresolution spectrum sensing (MRSS); partial swing technique;

fLanguage

English

Journal_Title

Circuits and Systems II: Express Briefs, IEEE Transactions on

Publisher

ieee

ISSN

1549-7747

Type

jour

DOI

10.1109/TCSII.2010.2040305

Filename

5427115