NDLI: On the performance of spectrum handoff for link maintenance in cognitive radio

Content Provider	IEEE Xplore Digital Library
Author	Li-Chun Wang Anderson, C.
Copyright Year	2008
Description	Author affiliation: Nat. Chiao Tung Univ., Hsinchu (Li-Chun Wang; Anderson, C.)
Abstract	Cognitive radio (CR) has the potential for resolving the spectrum scarcity issue in wireless communications. A CR device can establish unharmful links in the spectrum of the legacy system. Among many enabling functions for CR, spectrum handoff can restore CRpsilas connection when the primary user appears in the occupied channel. In this paper, we study three types of spectrum handoff for the link maintenance: (1) non-spectrum handoff method, (2) the pre-determined channel list spectrum handoff, and (3) the spectrum handoff based on radio sensing scheme. We examine the performances of the three mechanisms in terms of the link maintenance probability and the effective data rate of the secondary userpsilas transmission. Our numerical results show that erroneous channel selection probability, radio sensing time and the number of handoff trials are important for spectrum handoff schemes. We also provide the design guideline for these parameters.
Starting Page	670
Ending Page	674
File Size	154325
Page Count	5
File Format	PDF
ISBN	9781424416523
DOI	10.1109/ISWPC.2008.4556294
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-05-07
Publisher Place	Greece
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cognitive radio Chromium Media Access Protocol Wireless sensor networks Interference Delay Data communication Analytical models Wireless communication Guidelines
Content Type	Text
Resource Type	Article

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