Abstract
The potential of turbo-equalization technique applied to uplink (UL) LTE signals detection is analyzed in this paper. The turbo equalizer, which is also called iterative receiver, represents a popular approach for detection of signals passed through a fading channel. The receiver performs equalization and decoding of error-correcting code in a loop. For implementation of the iterative receiver we performed two frequency-domain equalizers: the approximate MMSE SISO-equalizer and the soft interference canceller (SIC) SISO-equalizer. During the simulation, we analyzed several configurations of UL LTE with QPSK, 16-QAM, 64-QAM signal constellations and allocation of 25 and 100 resource blocks. All considered modes used rate 2/3 parallel concatenated convolutional code and single input single output antennas pattern. Bit error rate (BER) performance was estimated during the simulation with the extended vehicular A (EVA) model of multipath fading channel.
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Gelgor, A., Gorlov, A., Ivanov, P., Popov, E., Arkhipkin, A., Gelgor, T. (2015). Improving BER Performance of Uplink LTE by Using Turbo Equalizer. In: Balandin, S., Andreev, S., Koucheryavy, Y. (eds) Internet of Things, Smart Spaces, and Next Generation Networks and Systems. ruSMART NEW2AN 2015 2015. Lecture Notes in Computer Science(), vol 9247. Springer, Cham. https://doi.org/10.1007/978-3-319-23126-6_40
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DOI: https://doi.org/10.1007/978-3-319-23126-6_40
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