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This paper considers the problem of subcarrier allocation in the downlink of multi-cell OFDMA networks. Firstly, a novel fractional frequency reuse architecture is proposed, where all available subcarriers are partitioned into two groups to which subcarriers are dynamically allocated. The first group is used in the center of each cell whereas the other which is partitioned into three sectors orthogonally...
We propose an intercell downlink orthogonal frequency division multiple access (OFDMA) scheduling technique in a sectorized cellular network. Adjacent sectors from neighboring cells form a cluster and each OFDMA resource block is allocated to the rate-maximizing sector. Compared to a cellular network that uses conventional fractional frequency reuse (FFR) technique, our proposed system requires only...
In this work the feasibility of Reinforcement Learning (RL) for Dynamic Spectrum Management (DSM) in the context of next generation multicell Orthogonal Frequency Division Multiple Access (OFDMA) networks is studied. An RL-based algorithm is proposed and it is shown that the proposed scheme is able to dynamically find spectrum assignments per cell depending on the spatial distribution of the users...
In this work, an approach to an advanced spectrum management (ASM) framework in a multicell OFDMA network is given. The aim of this paper is to illustrate that an ASM operation over a multicell OFDMA scenario enables the efficient use of the available spectrum. Then, some spectrum bands could be released by primary or licensed spectrum holders in a geographical area to be shared with or rented to...
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