← 返回 JSSC 论文列表
📄 下载 JSSC 原文 PDF
JSSC 2012第9期RF & Wireless65nm

A 74-mW 200-MSs Wideband Spectrum Sensing Digital Baseband Processor for Cogniti

一款用于认知无线电的74mW、200MS/s宽带频谱感知数字基带处理器
65nm CMOS, 200-MHz sensing bandwidth, 7.4 mW power dissipation
认知无线电频谱感知数字基带处理器CMOS低功耗
▸自适应信道特定阈值和感知时间
▸联合优化算法、架构和电路参数以降低功耗和面积
▸在50ms感知时间内实现0.9检测概率和0.1误报概率
Abstract
A digital baseband cognitive radio spectrum sensing processor with 200-kHz resolution over 200-MHz bandwidth is in- tegrated in 1.64 mm in 65-nm CMOS. The processor uses adap- tive channel-speci fic threshold and sensing time to achieve detec- tion probability 0.9 and false-alarm probability 0.1 for 5-dB SNR and adjacent-band interferers of 30-dB INR within a 50-ms sensing time. The chip power an d area are minimized by jointly considering algorithm, architecture, and circuit parameters. The chip