1 Introduction
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In the considered HGNW model, Wi-Fi network is integrated within the LTE SBS coverage area to realise the LTE-U system.
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We proposed sense before transmit (SBT) method in this paper by adopting a transmit power control mechanisms using reciprocity theorem based on the channel state information to assign the secondary carriers.
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We propose CA approaches of LTE in unlicensed bands without degrading existing Wi-Fi performance.
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We restrict the interference generated to Wi-Fi-system due to LTE-U based on the channel state information by controlling transmit power to satisfy the QoS of Wi-Fi user.
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Simulation and analytical models are proposed for Wi-Fi and LTE-U users constrains.
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We contemplate the performance evaluation metrics in terms of the outage probability of LTE-U user under Wi-Fi user outage constrains.
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The effect of the scaling factor of tolerable threshold and outage constraint impacted by Wi-Fi system on LTE-U user’s performance.