Improvement of Energy Consumption in Cognitive Radio Networks using an Efficient Coarse – Fine Sensing Method
Global Proceedings Repository
View Archive Info| Field | Value | |
| Title |
Improvement of Energy Consumption in Cognitive Radio Networks using an Efficient Coarse – Fine Sensing Method
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| Creator |
Hikmat N. Abdullah
Hadeel S. Abed |
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| Description |
Cognitive radio ) CR) is a technology to solve the sacristy problem in the spectrum. One of the major problems is such technology is the high energy consumption especially during spectrum sensing. In this paper a method to improve energy consumption in sensing process is proposed. Theoretical analysis to compute the amount of energy consumed using the proposed as well as in the transmission stage during transmitting a local decision to the fusion center FC method are derived. The proposed sensing method is based on energy detection to detect the presence or absence of the primary user (PU). The proposed method consists of two stages: coarse sensing stage and fine sensing stage. In coarse sensing stage, all the channels in the band are sensed shortly and the channel that have maximum (or minimum) energy is identified to make intensive fine sensing for verifying the presence of PU signal (or hole). The performance of the proposed method is evaluated in two scenarios: non-cooperative, and cooperative in both AWGN and Rayleigh fading channels. The simulation results in cooperative scenario at SNR equals 0 dB showed that the proposed method reduces the energy consumption by 72% as compared with the traditional method based on single sensing stage. The result also showed that 57%, 54% reductions in energy consumption are obtained using the proposed method as compared with TSEEOB-CSSS and CC4C methods that are based on two sensing stages respectively.
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| Publisher |
Int'l Conference on Change, Innovation, Informatics and Disrurptuive Technology
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| Contributor |
—
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| Date |
2016-12-17 20:56:29
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| Type |
Peer-reviewed Paper
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| Format |
application/pdf
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| Identifier |
http://proceedings.sriweb.org/repository/index.php/ICCIIDT/icciidtt_london/paper/view/25
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| Source |
Int'l Conference on Change, Innovation, Informatics and Disrurptuive Technology; ICCIIDT London - UK
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| Language |
en
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| Rights |
Authors who submit to this conference agree to the following terms: a) Authors retain copyright over their work, while allowing the conference to place this unpublished work under a Creative Commons Attribution License, which allows others to freely access, use, and share the work, with an acknowledgement of the work's authorship and its initial presentation at this conference. b) Authors are able to waive the terms of the CC license and enter into separate, additional contractual arrangements for the non-exclusive distribution and subsequent publication of this work (e.g., publish a revised version in a journal, post it to an institutional repository or publish it in a book), with an acknowledgement of its initial presentation at this conference. c) In addition, authors are encouraged to post and share their work online (e.g., in institutional repositories or on their website) at any point before and after the conference. |
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