Wireless distributed computing for cyclostationary feature detection

Alfaqawi, Mohammed and Chebil, Jalel and Habaebi, Mohamed Hadi and Datla, Dinesh (2016) Wireless distributed computing for cyclostationary feature detection. Digital Communications and Networks, 2 (1). pp. 47-56. ISSN 2352-8648

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Abstract

Recently, wireless distributed computing (WDC) concept has emerged promising manifolds improvements to current wireless technologies. Despite the various expected benefits of this concept, significant drawbacks were addressed in the open literature. One of WDC key challenges is the impact of wireless channel quality on the load of distributed computations. Therefore, this research investigates the wireless channel impact on WDC performance when the latter is applied to spectrum sensing in cognitive radio (CR) technology. However, a trade-off is found between accuracy and computational complexity in spectrum sensing approaches. Increasing these approaches accuracy is accompanied by an increase in computational complexity. This results in greater power consumption and processing time. A novel WDC scheme for cyclostationary feature detection spectrum sensing approach is proposed in this paper and thoroughly investigated. The benefits of the proposed scheme are firstly presented. Then, the impact of the wireless channel of the proposed scheme is addressed considering two scenarios. In the first scenario, workload matrices are distributed over the wireless channel. Then, a fusion center combines these matrices in order to make a decision. Meanwhile, in the second scenario, local decisions are made by CRs, then, only a binary flag is sent to the fusion center.

Item Type:	Article (Journal)
Additional Information:	6727/45839
Uncontrolled Keywords:	Cognitive radio; Spectrum sensing; Cyclostationary feature detection; FFT time smoothing algorithms; Wireless distributed computing
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunication. Including telegraphy, radio, radar, television
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Engineering > Department of Electrical and Computer Engineering
Depositing User:	Dr. Mohamed Hadi Habaebi
Date Deposited:	25 Nov 2015 09:14
Last Modified:	19 Oct 2016 09:06
URI:	http://irep.iium.edu.my/id/eprint/45839

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