Optimal traffic splitting in multi-hop cognitive radio networks

Authors:
Yang Song;Jianfeng Wang;Chi Zhang;Yuguang Fang
Affiliations:
Department of Electrical and Computer Engineering, University of Florida, Gainesville, Florida;Philips Research North America, NY;Department of Electrical and Computer Engineering, University of Florida, Gainesville, Florida;Department of Electrical and Computer Engineering, University of Florida, Gainesville, Florida
Venue:
MILCOM'09 Proceedings of the 28th IEEE conference on Military communications
Year:
2009

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Abstract

In this work, we consider a multi-hop cognitive radio network with multiple flows. The challenges induced by the random behaviors of the primary users are investigated in a stochastic network utility maximization framework. To fully utilize the scarce network resource, we propose an optimal traffic splitting scheme for each source node to explore multiple paths effectively. In addition, the algorithm is fully distributed which provably converges to the global optimum solution with probability one. The analytical results are validated via simulations.