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- W2016564317 abstract "In this paper, the downlink of a cell is considered in an OFDMA-based relay network. In the cell, a base station (BS) and fixed relay stations (RSs) are deployed. Multiple subscriber stations (SS) are located in the cell. A SS is served either by a direct or a two hop connection. In a direct connection, a link between BS and SS exists. In a two hop connection, a link exists between BS and RS and between RS and SS. Using instantaneous channel state information, a method for resource allocation is presented which dynamically allocates subcarriers, bits and power to the existing links. An optimization problem is formulated aiming at the minimization of the power required for the transmissions of the BS and the RSs. The optimization problem is subject to a requested data rate on each link. The constraint is considered that a RS cannot transmit and receive simultaneously in order to avoid strong intercarrier interference. The evaluation of the presented resource allocation method shows that the required power is near to the theoretical minimum value and is lower than the power required by static resource allocation methods in a defined scenario of a relay network." @default.
- W2016564317 created "2016-06-24" @default.
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- W2016564317 date "2008-12-01" @default.
- W2016564317 modified "2023-09-25" @default.
- W2016564317 title "Resource allocation by Genetic Algorithm" @default.
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- W2016564317 doi "https://doi.org/10.1109/icccnet.2008.4787704" @default.
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