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Sociedade Brasileira de Telecomunicações

Optimal Policy for Initial Selection Radio Access Technology in Next Generation Wireless Networks

In this paper, we propose an optimal Joint Call Admission Control (JCAC) in next generation wireless networks, where different radio access technologies (RAT) coexist in a colocated way, and we study the impact of the different RAT’s radius coverage area in the system performance. By assuming that each incoming service request may be admitted in its native RAT or in an alternative RAT, we design an optimal JCAC that has to decide in which type of RAT the incoming call has to be admitted. This decision is evaluated under the consideration that the co-located RATs have different coverage areas. Numerical results show that variation in the proportionality of the radius of RAT coverage area impact on system performance.

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