Cross-layer Routing Design in Cognitive Radio Networks by Colored Multigraph Model |
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| Authors: | Xianwei Zhou Lin Lin Jianping Wang Xuesong Zhang |
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| Affiliation: | (1) Department of Communication Engineering, School of Information Engineering, University of Science and Technology Beijing, Beijing, 100083, People’s Republic of China |
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| Abstract: | In this paper, the cross-layer design routing in cognitive radio(CR) networks is studied. We propose a colored multigraph
based model for the temporarily available spectrum bands, called spectrum holes in this paper. Based on this colored multigraph
model, a polynomial time algorithm with complexity O(n
2) is also proposed to develop a routing and interface assignment, where n is the number of nodes in a CR network. Our algorithm optimizes the hop number of routing, meanwhile, the adjacent hop interference
(AHI) is also optimized locally.
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| Keywords: | Cognitive radio networks Cross-layer routing algorithm Interface assignment Adjacent hop interference |
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