MIMO SC-FDMA system performance for space time / frequency coding and spatial multiplexing

Regularized MIMO Equalization for SC-FDMA Systems

“…The blocks with dashed lines are used for only the SFBC SC-FDMA system, while the blocks with bold lines are used only for the SM SC-FDMA system. MIMO techniques are implemented in a similar way to that used in [11,16]. In these MIMO systems, two types of interference should be suppressed at the base station; the IAI which exists between the different mobile unit antennas and the ISI resulting from the multipath distortion.…”

“…The first trend focuses on solving the PAPR reduction problem [11,14,16], and the second one focuses on enhancing the Bit Error Rate (BER) performance [15,18,19]. Among the various MIMO techniques, Space Frequency Block Coding (SFBC) is a promising technique for implementation in SC-FDMA systems [16]. However, the use of SFBC increases the PAPR because of the spatial processing.…”

Frequency-domain precoding for single carrier frequency-division multiple access

“…In the context of SC-FDMA, [11] shows the possibility of employing transmit diversity for SC-FDMA in the form of space-time/frequency block coding (STBC/SFBC) or the more novel SC-SFBC. In [12] a study of the PAPR characteristics together with the error performance of MIMO SC-FDMA was presented for both SM and STC. It was shown that the PAPR and error performance are highly influenced by the choice of subcarrier mapping and vary from one MIMO scheme to the other.…”

SFBC design tradeoffs for mobile SC-FDMA with application to LTE-advanced

“…Using the conventional Alamouti space-time block code (STBC) for highly-mobile users where the channel changes rapidly from one SC-FDMA symbol to another, causes substantial degradation in performance. Earlier works on SFBC design in SC-FDMA include [4] and [1]. They focus on PAPR of the codes involved but do not address the issue of mobility.…”