Inherent instability of user channels in the localized SC-FDMA under doubly selective fading

Hashimoto, Takeshi

doi:10.1109/pimrc.2016.7794643

Cited by 1 publication

(2 citation statements)

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“…Especially for the uplink, it offers the advantage of lower power consumption and robustness against nonlinear effects thanks to the lesser peak-to-average power ratio (PAPR) of the SC-FDMA signal. 5 There has been many attempts and proposals to address the various aspects of this problem. These are appealing features for mobile devices.…”

Section: Introductionmentioning

confidence: 99%

“…The irregular behavior of DSC in a localized SC-FDMA uplink is analyzed in Hashimoto and Han. 5 There has been many attempts and proposals to address the various aspects of this problem. Equalization schemes for SC-FDMA uplink in the presence of transmitter I/Q imbalance and small CFOs for a frequency selective channel are proposed in Kiayani et al 4 The multiuser detection (MUD) scheme elaborated in Rahman and Sacchi 6 makes use of frequency domain equalization (FDE) for a frequency selective channel.…”

Section: Introductionmentioning

confidence: 99%

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Low complexity equalization techniques using interference cancellation for SC‐FDMA uplink systems under doubly selective channels

Muneer

Al-Rayif

Ijyas

2018

Int J Communication

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This paper addresses the important and challenging issue of joint equalization of carrier frequency offsets (CFOs), timing offsets, and doubly selective channels (DSCs) of multiple users in a SC-FDMA uplink. Low complexity, iterative equalizer solutions are proposed, which give impressive performance under rapidly varying channel conditions. We propose three different equalization schemes that make use of iterative interference cancellation technique named as iterative equalizer with interference cancellation (IEIC), iterative equalizer with interference cancellation and decoding (IEICD), and simplified iterative equalizer with interference cancellation and decoding (SIEICD). The SIEICD method proposed is a simplified version of the IEICD, and it makes use of the only significant elements in the receive signal model in the matrix form. The superior performance of the methods in high mobility conditions with several users is amply demonstrated through extensive simulation studies. KEYWORDS equalization over DSC, joint equalization, single carrier frequency division multiple access SC-FDMA uplink, time and frequency selective channel Abbreviations: IEIC, iterative equalizer with interference cancellation; IEICD, iterative equalizer with interference cancellation; SC-FDMA, single carrier frequency division multiple access; SIEICD, simplified iterative equalizer with interference cancellation. Int J Commun Syst. 2018;31:e3819.wileyonlinelibrary.com/journal/dac

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%