Journal ArticleDOI
Single carrier FDMA for uplink wireless transmission
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TLDR
Among the possible subcarrier mapping approaches, it is found that localizedFDMA (LFDMA) with channel-dependent scheduling (CDS) results in higher throughput than interleaved FDMA (JFDMA), however, the PARR performance of IFDMA is better than that of LFDMA.Abstract:
Single carrier frequency division multiple access (SC FDMA), a modified form of orthogonal FDMA (OFDMA), is a promising technique for high data rate uplink communications in future cellular systems. SC-FDMA has similar throughput performance and essentially the same overall complexity as OFDMA. A principal advantage of SC-FDMA is the peak-to-average power ratio (PARR), which is lower than that of OFDMA. SC FDMA is currently a strong candidate for the uplink multiple access scheme in the long term evolution of cellular systems under consideration by the third generation partnership project (3GPP). In this paper, we give an overview of SC-FDMA. We also analyze the effects of subcarrier mapping on throughput and PARR. Among the possible subcarrier mapping approaches, we find that localized FDMA (LFDMA) with channel-dependent scheduling (CDS) results in higher throughput than interleaved FDMA (JFDMA). However, the PARR performance of IFDMA is better than that of LFDMA. As in other communications systems there are complex tradeoffs between design parameters and performance in an SC-FDMA systemread more
Citations
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Journal ArticleDOI
An Efficient Transceiver Scheme for SC-FDMA Systems Based on Discrete Wavelet Transform and Discrete Cosine Transform
Faisal S. Al-Kamal,Emad S. Hassan,Mohammed Abd El-Naby,F. Shawki,Said E. El-Khamy,Moawad I. Dessouky,B. M. Sallam,Saleh A. Alshebeili,Fathi E. Abd El-Samie +8 more
TL;DR: A new transceiver architecture design for the uplink SC-FDMA system that implements a cosine basis function or a complex exponential Fourier basis function and the proposed architecture uses the discrete wavelet transform and a hybrid companding and clipping method for peak-to-average power ratio reduction.
Journal ArticleDOI
Spectrum Sensing of Interleaved SC-FDMA Signals in Cognitive Radio Networks
Amir Mirdamadi,Maryam Sabbaghian +1 more
TL;DR: Through comparative performance evaluation, this paper demonstrates the superiority of the proposed detection scheme over energy detection and the detection method based on autocorrelation of the cyclic prefix (CP).
Journal ArticleDOI
High-Order Moments and Gaussianity of Single-Carrier and OFDM Signals
TL;DR: It is shown how the moments of OFDM signals can approach to those of Gaussian distribution as the number of subcarriers increases for a given modulation constraint on each subcarrier.
Journal ArticleDOI
Equalization and Carrier Frequency Offsets Compensation for the SC-FDMA System
TL;DR: It is clear that CFOs disrupt the orthogonality between the subcarriers in SC-FDMA systems and degrade the Bit Error Rate performance, but the proposed compensation schemes are able to enhance the system performance, even in the presence of the estimation errors.
Proceedings ArticleDOI
PAPR reduction in SC-IFDMA uplink system using parametric pulses
TL;DR: In this article, the authors implemented parametric pulses for pulse shaping in order to reduce peak-to-average power ratio (PAPR) in the interleaved mode of the single carrier frequency division multiple access (SC-IFDMA) scheme.
References
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