Journal on Communications ›› 2016, Vol. 37 ›› Issue (5): 106-114.doi: 10.11959/j.issn.1000-436x.2016098

• Papers • Previous Articles     Next Articles

Routing approach based on local topology control in cognitive radio networks

Shu-qi LIU1,2,Yi-ming WANG1,Cui-mei CUI1   

  1. 1 School of Electronics and Information Engineering,Soochow University,Suzhou 215021,China
    2 School of Electrical and Information Engineering,Jian u University of Technology,Changzhou 213000,China
  • Online:2016-05-25 Published:2016-06-01
  • Supported by:
    The National Natural Science Foundation of China;The National Natural Science Foundation of China;The National Natural Science Foundation of China

Abstract:

An approach of topology control and routing was proposed according to the characteristics of cogni ive radio networks,which considered multi factors optimization with fusion of primary users and secondary users.And the ap-proach took the spectrum utilization of primary users the interference from secondary users to primary users into ac-count.Then a joint link cost was defined combining the predicted cognitive link stability with the link power consump-tion.Furthermore,the local cognitive topology control routing(LCTCR)algorithm with minimizing the link cost was presented,which was used to optimize the network topology.Meanwhile,the network path was selected according to the optimized network topology.Theoretical analysis and simulation experiments show that the link power consumption and the link stability are also important parameters and need to be jointly optimized when selecting the network path.Only by doing so can it guarantee that the selected path is optimal.

Key words: cognitive radio network, topology control, routing, link stability, link power consumption

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