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Cross-Layer Throughput Optimization in Cognitive Radio Networks with SINR Constraints
Joint Authors
Source
International Journal of Digital Multimedia Broadcasting
Issue
Vol. 2010, Issue 2010 (31 Dec. 2010), pp.1-13, 13 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2010-07-05
Country of Publication
Egypt
No. of Pages
13
Main Subjects
Engineering Sciences and Information Technology
Telecommunications Engineering
Electronic engineering
Information Technology and Computer Science
Abstract EN
Recently, there have been some research works in the design of cross-layer protocols for cognitive radio (CR) networks, where the Protocol Model is used to model the radio interference.
In this paper we consider a multihop multi-channel CR network.
We use a more realistic Signal-to-Interference-plus-Noise Ratio (SINR) model for radio interference and study the following cross-layer throughput optimization problem: (1) Given a set of secondary users with random but fixed location, and a set of traffic flows, what is the max-min achievable throughput? (2) To achieve the optimum, how to choose the set of active links, how to assign the channels to each active link, and how to route the flows? To the end, we present a formal mathematical formulation with the objective of maximizing the minimum end-to-end flow throughput.
Since the formulation is in the forms of mixed integer nonlinear programming (MINLP), which is generally a hard problem, we develop a heuristic method by solving a relaxation of the original problem, followed by rounding and simple local optimization.
Simulation results show that the heuristic approach performs very well, that is, the solutions obtained by the heuristic are very close to the global optimum obtained via LINGO.
American Psychological Association (APA)
Ma, Miao& Tsang, Danny H. K.. 2010. Cross-Layer Throughput Optimization in Cognitive Radio Networks with SINR Constraints. International Journal of Digital Multimedia Broadcasting،Vol. 2010, no. 2010, pp.1-13.
https://search.emarefa.net/detail/BIM-513710
Modern Language Association (MLA)
Ma, Miao& Tsang, Danny H. K.. Cross-Layer Throughput Optimization in Cognitive Radio Networks with SINR Constraints. International Journal of Digital Multimedia Broadcasting No. 2010 (2010), pp.1-13.
https://search.emarefa.net/detail/BIM-513710
American Medical Association (AMA)
Ma, Miao& Tsang, Danny H. K.. Cross-Layer Throughput Optimization in Cognitive Radio Networks with SINR Constraints. International Journal of Digital Multimedia Broadcasting. 2010. Vol. 2010, no. 2010, pp.1-13.
https://search.emarefa.net/detail/BIM-513710
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-513710