A Low-Power Multi Resolution Spectrum Sensing Architecture for a Wireless Sensor Network with Cognitive Radio
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- KONISHI Toshihiro
- Department of Computer and Systems Engineering, Kobe University
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- IZUMI Shintaro
- Department of Computer and Systems Engineering, Kobe University
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- TSURUDA Koh
- Department of Computer and Systems Engineering, Kobe University
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- LEE Hyeokjong
- Department of Computer and Systems Engineering, Kobe University
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- TAKEUCHI Takashi
- Department of Computer and Systems Engineering, Kobe University
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- YOSHIMOTO Masahiko
- Department of Computer and Systems Engineering, Kobe University
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- KAWAGUCHI Hiroshi
- Department of Computer and Systems Engineering, Kobe University
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抄録
Concomitantly with the progress of wireless communications, cognitive radio has attracted attention as a solution for depleted frequency bands. Cognitive radio is suitable for wireless sensor networks because it reduces collisions and thereby achieves energy-efficient communication. To make cognitive radio practical, we propose a low-power multi-resolution spectrum sensing (MRSS) architecture that has flexibility in sensing frequency bands. The conventional MRSS scheme consumes much power and can be adapted only slightly to process scaling because it comprises analog circuits. In contrast, the proposed architecture carries out signal processing in a digital domain and can detect occupied frequency bands at multiple resolutions and with low power. Our digital MRSS module can be implemented in 180-nm and 65-nm CMOS processes using Verilog-HDL. We confirmed that the processes respectively dissipate 9.97mW and 3.45mW.
収録刊行物
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- IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
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IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences E94-A (11), 2287-2294, 2011
一般社団法人 電子情報通信学会
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詳細情報 詳細情報について
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- CRID
- 1390282681288645888
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- NII論文ID
- 10030191871
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- NII書誌ID
- AA10826239
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- ISSN
- 17451337
- 09168508
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- HANDLE
- 20.500.14094/90002966
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- IRDB
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可