In this preliminary work we address the problem of maximizing the weighted sum-rate in the uplink of single-carrier frequency division multiple access (SC-FDMA) systems by considering both the in-band Type 1 and Type 1b relay transmission schemes to enhance the performance of cell-edge users. Since the evaluation of optimal solutions generally requires high computational complexity, low-complexity heuristic algorithmic solutions are proposed and investigated. Comparisons of in-band relaying schemes using optimal and heuristic algorithmic solutions are finally presented.
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