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- W2165943644 abstract "Multicarrier code-division multiple access (MC-CDMA) can support high data rates in next-generation multiuser wireless communication systems. Partial equalization (PE) is a low-complexity technique for combining the signals of subcarriers to improve the achievable performance of MC-CDMA systems in terms of their bit error probability (BEP) and bit error outage (BEO) in comparison with maximal ratio combining, orthogonality restoring combining, and equal-gain combining techniques. We analyze the performance of the multiuser MC-CDMA downlink and derive the optimal PE parameter expression, which minimizes the BEP. Realistic imperfect channel estimation and frequency-domain (FD) block-fading channels are considered. More explicitly, the analytical expression of the optimum PE parameter is derived as a function of the number of subcarriers, number of active users (i.e., the system load), mean signal-to-noise ratio (SNR), and variance of the channel-estimation errors for the aforementioned FD block-fading channel. We show that the choice of the optimal PE technique significantly increases the achievable system load for the given target BEP and BEO." @default.
- W2165943644 created "2016-06-24" @default.
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- W2165943644 date "2010-10-01" @default.
- W2165943644 modified "2023-09-27" @default.
- W2165943644 title "Partial Equalization for MC–CDMA Systems in Non-Ideally Estimated Correlated Fading" @default.
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- W2165943644 doi "https://doi.org/10.1109/tvt.2010.2060217" @default.
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