Abstract
The access efficiency of the radio spectrum can be improved by adopting dynamic spectrum management (DSM) to face the existing challenges in wireless communication, such as the ever-increasing spectrum demand and inefficient spectrum use. This work proposes a hybrid model for dynamic spectrum access in cognitive radio environments. The access type combines the benefits of opportunistic spectrum access (OSA) and concurrent spectrum access (CSA). The spectrum allocation problem is modeled as a non-cooperative game, each unlicensed user (secondary user (SU)) acting as a player to gain a channel for transmission. Nash equilibrium is adopted as the solution of this game model, in which, the licensed users (primary users (PUs)) have a higher priority than the SUs and are completely protected from any harmful interference. Results show that the proposed model can improve spectrum allocation efficiency, both in terms of minimizing the total generated interference and maximizing energy efficiency.
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Mohammed, S., Chehri, A., Yassine, E.H., Rachid, S., Mohammed, W., Hatim, K.A. (2021). Hybrid OSA-CSA Model for an Efficient Dynamic Spectrum Access in Cognitive Radio Environments. In: Zimmermann, A., Howlett, R.J., Jain, L.C., Schmidt, R. (eds) Human Centred Intelligent Systems . KES-HCIS 2021. Smart Innovation, Systems and Technologies, vol 244. Springer, Singapore. https://doi.org/10.1007/978-981-16-3264-8_13
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DOI: https://doi.org/10.1007/978-981-16-3264-8_13
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