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An Enhanced Cognitive Femtocell Approach for Co-Channel Downlink Interference Avoidance

Khwandah, Sinan, Cosmas, John, Glover, Ian, Lazaridis, Pavlos, Araniti, Giuseppe and Zaharis, Zaharias D. (2016) An Enhanced Cognitive Femtocell Approach for Co-Channel Downlink Interference Avoidance. IEEE Wireless Communications, 23 (6). pp. 132-139. ISSN 1536-1284

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The deployment of low-power nodes such as femtocells within the macrocell’s coverage area is one of the main features of future 5G networks. However, challenges arise in the femtocell planning and management , particularly due to interference occuring when femtocells are deployed in a co-channel with the macrocell. The cognitive radio inspired femtocell is one of the solutions to mitigate interference. In this study, the cognitive scheme is enhanced by enabling the femtocell to take advantage of the LTE channel-dependent scheduling in order to predict the future resources of the nearby victim macro-users, and to avoid using them. Simulation results show that the co-channel interference on the macrocell downlink signal is minimal, and therefore performance is improved, under the condition that the cognitive femtocell operates adaptively and monitors spectrum allocations continuously.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Schools: School of Computing and Engineering
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Depositing User: Pavlos Lazaridis
Date Deposited: 24 May 2017 08:42
Last Modified: 28 Aug 2021 12:16


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