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Cyclic Delay Diversity (CDD) has been considered as an improving way to obtain frequency diversity. Single Carrier FDMA (SC-FDMA) combines the advantages of the OFDMA but with lower Peak to Average Power Ratio (PAPR). In this paper we propose SC-FDMA with CDD system which achieves full diversity without data rate loss. In addition we apply linear precoding to SC-FDMA-CDD system especially in Rayleigh...
In this paper, a simple and effective PIC (Parallel Interference Cancellation) method without pilot was proposed for the case that the signal transmission under the imperfect synchronization from relay nodes to the destination node. This scheme utilizing iteration cancels the interference components in the received signals. Applying two antennas in destination node, the effect of this proposed method...
The uplink capacity of cellular systems, where the co-channel interference (CCI) limits the system capacity more than thermal noise, is investigated in this paper. We evaluate the overall system capacity under slow fading when space-time block codes (STBC) are employed. A power control technique suited for STBC is proposed to improve the bit error rate (BER) performance on the target link and the...
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