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Widely Linear Estimation for Space-Time-Coded GFDM in Low-Latency Applications

This paper presents a solution for achieving transmit diversity with Generalized Frequency Division Multiplexing (GFDM). Compared to previous works, the proposed solution significantly improves symbol error rate (SER) performance and latency, where both aspects are crucial for future 5G cellularnetworks.

It is shown that widely linear estimation at the receiver side can jointly equalize and demodulate the space-time encoded GFDM signal. Moreover, maximum ratio combining can further increase the SER performance with multiple receive antennas. SER performance is evaluated in Rayleigh fading multipath channel.