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
QoS and Energy Efficient Resource Allocation in Uplink SC-FDMA Systems
TL;DR: A suboptimal algorithm is introduced, which performs resource allocation using information on the estimated uplink packet delay, the average delay and data rate of past allocations, as well as the required uplink power per resource block, which achieves significant performance improvement in terms of packet timeout rate, goodput, and fairness.
Proceedings ArticleDOI
Scheduling and Resource Allocation in LTE Uplink with a Delay Requirement
Oscar Delgado,Brigitte Jaumard +1 more
TL;DR: Two new scheduling algorithms are provided that, in addition to the channel contiguity constraint, take also into account the end-to-end delay constraint, without sacrificing the user fairness.
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Suppression of ICI and MAI in SC-FDMA communication system with carrier frequency offsets
Xiu Zhang,Heung-Gyoon Ryu +1 more
TL;DR: Simulation results show that the proposed suppression algorithm can significantly improved system performance and can be easily extended to other communication system.
Journal ArticleDOI
Transmission of 1 Tb/s Unique-Word DFT-Spread OFDM Superchannel Over 8000 km EDFA-Only SSMF Link
TL;DR: In this article, the authors demonstrate the transmission of 1.0 Tb/s unique-word DFTS-OFDM superchannel signal over 8000 km standard single-mode fiber with 80 km span engineering and erbium-doped fiber amplification (EDFA) using quadrature phase shift keying (QPSK) modulation.
Proceedings ArticleDOI
DFT-Based Channel Estimation and Noise Variance Estimation Techniques for Single-Carrier FDMA
TL;DR: This paper investigates the performance of the denoise channel estimator and the approximate linear minimum mean square error (A-LMMSE) channel estimators with channel power delay profile (PDP) mismatch and noise variance estimation errors for a single carrier frequency division multiple access (SC-FDMA) system.
References
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Transmission techniques for digital terrestrial TV broadcasting
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