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Article Dans Une Revue IEEE Wireless Communications Letters Année : 2013

Relay Selection and Resource Allocation for Two Way DF-AF Cognitive Radio Network

Résumé

In this letter, the problem of relay selection and optimal resource allocation for two-way relaying cognitive radio networks using half duplex amplify-and-forward and decodeand- forward protocols is investigated. The primary and secondary users are assumed to access the spectrum simultaneously, in a way that the interference introduced to the primary users should be below a certain tolerated limit. Dual decomposition and subgradient methods are used to find the optimal power allocation. A suboptimal approach based on a genetic algorithm is also presented. Simulation results show that the proposed suboptimal algorithm offers a performance close to the optimal performance with a considerable complexity saving.

Dates et versions

hal-00934754 , version 1 (22-01-2014)

Identifiants

Citer

Ahmad Alsharoa, Carlos Faouzi Bader, Mohamed-Slim Alouini. Relay Selection and Resource Allocation for Two Way DF-AF Cognitive Radio Network. IEEE Wireless Communications Letters, 2013, 2 (4), pp.427 - 430. ⟨10.1109/WCL.2013.051513.130211⟩. ⟨hal-00934754⟩
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