A flexible baseband processor with multi-resolution spectrum-sensing functionality

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 reconf...

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Bibliographic Details
Main Authors: Tsuruda, K., Izumi, S., Hyeokjong Lee, Takeuchi, T., Kawaguchi, H., Yoshimoto, M.
Format: Conference Proceeding
Language:English
Subjects:
Arithmetic
Band pass filters
Bandwidth
Baseband
CMOS process
Cognitive radio
Frequency
Prototypes
Random access memory
Voltage
Online Access:Request full text
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Summary: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.
DOI:10.1109/ISITA.2008.4895628