IEICE TRANSACTIONS on Fundamentals
A Low Power Reconfigurable Channel Filter Using Multi-Band and Masking Architecture for Channel Adaptation in Cognitive Radio
Summary :
Cognitive radio (CR) is an adaptive spectrum sharing paradigm targeted to provide opportunistic spectrum access to secondary users for whom the frequency bands have not been licensed. The key tasks in a CR are to sense the spectral environment over a wide frequency band and allow unlicensed secondary users (CR users) to dynamically transmit/receive data over frequency bands unutilized by licensed primary users. Thus the CR transceiver should dynamically adapt its channel (frequency band) in response to the time-varying frequencies of wideband signal for seamless communication. In this paper, we present a low complexity reconfigurable filter architecture based on multi-band filtering and frequency masking techniques for dynamic channel adaptation in CR terminal. The proposed multi-standard architecture is capable of adapting to channels having different bandwidths corresponding to the channel spacing of time-varying channels. Design examples show that proposed architecture offers 12.2% power reduction and 26.5% average gate count reduction over conventional Per-Channel based architecture.
- Publication
- IEICE TRANSACTIONS on Fundamentals Vol.E92-A No.6 pp.1424-1432
- Publication Date
- 2009/06/01
- Publicized
- Online ISSN
- 1745-1337
- DOI
- 10.1587/transfun.E92.A.1424
- Type of Manuscript
- PAPER
- Category
- Digital Signal Processing
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Keyword
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K. G. SMITHA, A. P. VINOD, "A Low Power Reconfigurable Channel Filter Using Multi-Band and Masking Architecture for Channel Adaptation in Cognitive Radio" in IEICE TRANSACTIONS on Fundamentals,
vol. E92-A, no. 6, pp. 1424-1432, June 2009, doi: 10.1587/transfun.E92.A.1424.
Abstract: Cognitive radio (CR) is an adaptive spectrum sharing paradigm targeted to provide opportunistic spectrum access to secondary users for whom the frequency bands have not been licensed. The key tasks in a CR are to sense the spectral environment over a wide frequency band and allow unlicensed secondary users (CR users) to dynamically transmit/receive data over frequency bands unutilized by licensed primary users. Thus the CR transceiver should dynamically adapt its channel (frequency band) in response to the time-varying frequencies of wideband signal for seamless communication. In this paper, we present a low complexity reconfigurable filter architecture based on multi-band filtering and frequency masking techniques for dynamic channel adaptation in CR terminal. The proposed multi-standard architecture is capable of adapting to channels having different bandwidths corresponding to the channel spacing of time-varying channels. Design examples show that proposed architecture offers 12.2% power reduction and 26.5% average gate count reduction over conventional Per-Channel based architecture.
URL: https://global.ieice.org/en_transactions/fundamentals/10.1587/transfun.E92.A.1424/_p
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@ARTICLE{e92-a_6_1424,
author={K. G. SMITHA, A. P. VINOD, },
journal={IEICE TRANSACTIONS on Fundamentals},
title={A Low Power Reconfigurable Channel Filter Using Multi-Band and Masking Architecture for Channel Adaptation in Cognitive Radio},
year={2009},
volume={E92-A},
number={6},
pages={1424-1432},
abstract={Cognitive radio (CR) is an adaptive spectrum sharing paradigm targeted to provide opportunistic spectrum access to secondary users for whom the frequency bands have not been licensed. The key tasks in a CR are to sense the spectral environment over a wide frequency band and allow unlicensed secondary users (CR users) to dynamically transmit/receive data over frequency bands unutilized by licensed primary users. Thus the CR transceiver should dynamically adapt its channel (frequency band) in response to the time-varying frequencies of wideband signal for seamless communication. In this paper, we present a low complexity reconfigurable filter architecture based on multi-band filtering and frequency masking techniques for dynamic channel adaptation in CR terminal. The proposed multi-standard architecture is capable of adapting to channels having different bandwidths corresponding to the channel spacing of time-varying channels. Design examples show that proposed architecture offers 12.2% power reduction and 26.5% average gate count reduction over conventional Per-Channel based architecture.},
keywords={},
doi={10.1587/transfun.E92.A.1424},
ISSN={1745-1337},
month={June},}
Copy
TY - JOUR
TI - A Low Power Reconfigurable Channel Filter Using Multi-Band and Masking Architecture for Channel Adaptation in Cognitive Radio
T2 - IEICE TRANSACTIONS on Fundamentals
SP - 1424
EP - 1432
AU - K. G. SMITHA
AU - A. P. VINOD
PY - 2009
DO - 10.1587/transfun.E92.A.1424
JO - IEICE TRANSACTIONS on Fundamentals
SN - 1745-1337
VL - E92-A
IS - 6
JA - IEICE TRANSACTIONS on Fundamentals
Y1 - June 2009
AB - Cognitive radio (CR) is an adaptive spectrum sharing paradigm targeted to provide opportunistic spectrum access to secondary users for whom the frequency bands have not been licensed. The key tasks in a CR are to sense the spectral environment over a wide frequency band and allow unlicensed secondary users (CR users) to dynamically transmit/receive data over frequency bands unutilized by licensed primary users. Thus the CR transceiver should dynamically adapt its channel (frequency band) in response to the time-varying frequencies of wideband signal for seamless communication. In this paper, we present a low complexity reconfigurable filter architecture based on multi-band filtering and frequency masking techniques for dynamic channel adaptation in CR terminal. The proposed multi-standard architecture is capable of adapting to channels having different bandwidths corresponding to the channel spacing of time-varying channels. Design examples show that proposed architecture offers 12.2% power reduction and 26.5% average gate count reduction over conventional Per-Channel based architecture.
ER -
English
