Title :
A flexible baseband processor with multi-resolution spectrum-sensing functionality
Author :
Tsuruda, Koh ; Izumi, Shintaro ; Lee, Hyeokjong ; Takeuchi, Takashi ; Kawaguchi, Hiroshi ; Yoshimoto, Masahiko
Author_Institution :
Kobe Univ., Kobe
Abstract :
In this paper, we propose a reconfigurable baseband processor for a cognitive radio that has multi-resolution bandpass filters. By applying the distributed arithmetic algorithm to the reconfigurable baseband processor and rewriting SRAM data in it, a channel center frequency and bandwidth are reconfigurable. The filter bandwidth can be changed from 40 kHz to 240 kHz with a 10 kHz resolution on our prototype processor. The power is 13 mW at a supply voltage of 1.8 V in a 0.18-mum CMOS process.
Keywords :
SRAM chips; band-pass filters; cognitive radio; SRAM; channel center frequency; cognitive radio; distributed arithmetic algorithm; flexible baseband processor; frequency 240 kHz; frequency 40 kHz; multi-resolution bandpass filters; multi-resolution spectrum-sensing functionality; power 13 mW; reconfigurable baseband processor; voltage 1.8 V; Arithmetic; Band pass filters; Bandwidth; Baseband; CMOS process; Cognitive radio; Frequency; Prototypes; Random access memory; Voltage;
Conference_Titel :
Information Theory and Its Applications, 2008. ISITA 2008. International Symposium on
Conference_Location :
Auckland
Print_ISBN :
978-1-4244-2068-1
Electronic_ISBN :
978-1-4244-2069-8
DOI :
10.1109/ISITA.2008.4895628
