Sun, J., Rashvand, H. F. and Zhu, H. -B.. (2010) Opportunistic spectrum access framework for video over ad hoc wireless networks. IET Communications, Vol.4 (No.11). pp. 1269-1276. ISSN 1751-8628

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Abstract

The opportunistic spectrum access (OSA) over wireless networks, ad hoc wireless networks in particular, opens up use of licensed spectrum to unlicensed users for higher capacity and better commercial values enabling bandwidth-hungry content applications like video services. The existing solution's serious practical problems for the primary and secondary users include fairness, utilisation, collision and unfair spectrum access strategy. In this study the authors propose a new analytical framework for more effective implementing the OSA over ad hoc networks for which we integrate the spectrum access assignment with selective physical layer transmission characteristics enhanced with the service traffic information. For this we first define a distance-tree model to generate an available degree (AD) list for all primary and secondary users. Then, a new fairness-driven utility function is defined to control the spectrum efficiency and fairness for the secondary users. Finally, the authors propose some access strategies for the video applications using the cross-layer design.

Item Type:	Journal Article
Subjects:	T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:	Faculty of Science > Engineering
Journal or Publication Title:	IET Communications
Publisher:	The Institution of Engineering and Technology
ISSN:	1751-8628
Official Date:	23 July 2010
Volume:	Vol.4
Number:	No.11
Number of Pages:	8
Page Range:	pp. 1269-1276
Identification Number:	10.1049/iet-com.2009.0410
Status:	Peer Reviewed
Publication Status:	Published
Access rights to Published version:	Restricted or Subscription Access
Funder:	National 973 project, 44th China Poster Doctor Foundation, Province Poster Doctor Foundation, Special Issues of Major National Science and Technology, Special Supporting of China Poster Doctor Foundation
Grant number:	2007CB310600, 20080441067, 0802017B, 2009ZX03003-002, 2009ZX03007-004, 200902528, 2009AA011300
URI:	http://wrap.warwick.ac.uk/id/eprint/5552

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