NDLI: Adaptive MAC Protocol for Throughput Enhancement in Cognitive Radio Networks

Content Provider	IEEE Xplore Digital Library
Author	Byungjoo Lee Seung Hyong Rhee
Copyright Year	2008
Description	Author affiliation: Kwangwoon Univ., Seoul (Byungjoo Lee; Seung Hyong Rhee)
Abstract	Cognitive radio technology has been proposed to share the scarce spectrum resources without disturbing the legacy devices of wireless network. The cognitive radio device is allowed to use the spectrum only when it does not cause any interferences or collisions to the incumbent users. We suggest an adaptive MAC protocol for the purpose of a throughput enhancement in cognitive radio networks. Assuming the channel status is dynamically known to the devices, they change their transmission mode between frame recovery mode and dual transmit mode according to the channel status. When the cognitive channel is hard to use due to frame errors, the channel is used for the frame errors recovery. Otherwise, in addition to its own legacy channel, the cognitive channel can be used to increase the throughput. In this paper, we study the effect of using additional channel in the cognitive networks, and prove an adaptive method of MAC protocol in the interest of throughput enhancement in cognitive radio network, and prove the performance of our proposed mechanism by simulations.
Starting Page	1
Ending Page	5
File Size	812834
Page Count	5
File Format	PDF
ISBN	9788996076117
ISSN	19767684
DOI	10.1109/ICOIN.2008.4472832
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2008-01-23
Publisher Place	South Korea
Access Restriction	Subscribed
Rights Holder	Korean Inst. of Information, Scientists & Engineers
Subject Keyword	Media Access Protocol Throughput Cognitive radio Wireless communication TV broadcasting Frequency Interference Wireless networks Communications technology Digital TV
Content Type	Text
Resource Type	Article

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