NDLI: Dynamic spectrum handoff for industrial cognitive wireless sensor networks

Content Provider	IEEE Xplore Digital Library
Author	Son Duc Nguyen Tung-Linh Pham Dong-Seong Kim
Copyright Year	2013
Description	Author affiliation: Dept. of IT Convergence, Kumoh Nat. Inst. of Technol., Gumi, South Korea (Son Duc Nguyen; Tung-Linh Pham; Dong-Seong Kim)
Abstract	This paper proposes a new adaptive spectrum handoff scheme where sensor nodes opportunistically use licensed channels as long as its transmission does not cause interference with primary receivers (PRs) in cognitive radio-based industrial wireless sensor networks (CR-IWSNs). We incorporate proactive spectrum sensing into the proposed spectrum handoff scheme to reduce the number of spectrum handoff. With the proposed spectrum handoff scheme, the sensor node may still be able to access the licensed channel band even though a primary user (PU) signal is present. Moreover, a recovery spectrum handoff scheme to allow continuous connectivity between the sensor nodes under rapidly changing PU activity and efficiently recover control channel, is proposed. For the scenarios we considered, the proposed adaptive spectrum handoff outperforms the existing spectrum handoff schemes exhibiting higher throughput, reduced the number of spectrum handoff and shorter switching-handoff delay.
Starting Page	92
Ending Page	97
File Size	941380
Page Count	6
File Format	PDF
ISBN	9781479907526
DOI	10.1109/INDIN.2013.6622864
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2013-07-29
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Wireless sensor networks Switches Interference Receivers Throughput Sensors Cognitive radio
Content Type	Text
Resource Type	Article

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