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- W2127209579 abstract "The presence of the multi-access interference (MAI) limits the uplink performance of code division multiple access (CDMA). 2-dimensional (2D) block spread CDMA makes it possible to achieve MAI free uplink transmission while obtaining the frequency diversity gain by using low-complexity single-user frequency-domain equalization (FDE). To further improve the uplink transmission performance, the transmit diversity technique can be used. Cyclic delay transmit diversity (CDTD) can strengthen the frequency-selectivity of the channel. In this paper, we apply CDTD to 2D block spread CDMA with MMSE-FDE. The achievable uplink BER performance is evaluated by computer simulation for both direct sequence CDMA and multi-carrier CDMA. It is shown that CDTD can offer improved uplink BER performance in a frequency-selective uplink channel." @default.
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- W2127209579 date "2009-09-01" @default.
- W2127209579 modified "2023-09-25" @default.
- W2127209579 title "Application of cyclic delay transmit diversity to uplink 2-dimensional block spread CDMA with frequency-domain equalization" @default.
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- W2127209579 doi "https://doi.org/10.1109/pimrc.2009.5449845" @default.
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