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- W2057989819 abstract "In this paper, we consider amplify-and-forward cooperative diversity for wireless systems employing bit-interleaved coded modulation (BICM) and orthogonal frequency division multiplexing (OFDM). In the second hop, multiple relays transmit concurrently over disjoint sets of sub-carriers. We propose uniform and non-uniform sub-carrier allocation schemes, which guarantee full diversity if all involved channels have identical lengths. The non-uniform allocation scheme also guarantees full diversity if the involved channels have different lengths. In addition, we formulate a power allocation problem for minimization of an upper bound on the worst-case pairwise error probability of the considered cooperative diversity scheme and provide an efficient solution using geometric programming. Simulation results confirm the effectiveness of the proposed sub- carrier and power allocation schemes." @default.
- W2057989819 created "2016-06-24" @default.
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- W2057989819 date "2010-07-01" @default.
- W2057989819 modified "2023-09-23" @default.
- W2057989819 title "Cooperative BICM-OFDM: Sub-carrier and power allocation" @default.
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- W2057989819 doi "https://doi.org/10.1109/spcom.2010.5560467" @default.
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