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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Dissertation
Study and evaluation of a frequential multiplexing based on OFDM/OQAM
TL;DR: In this article, the authors propose a schema d'acces multiple base on the modulation OFDM/OQAM, alternatif aux techniques connues OFDMA and SC-FDMA, for transmission en liaison montante dans un contexte de type 3GPP/LTE.
Excess-Bandwidth Joint Transmit/Receive Frequency-Domain Equalization for Single-Carrier Transmission (無線通信システム)
TL;DR: This paper proposes an excess-bandwidth joint transmit/receive FDE, using minimum mean-square error based frequency-domain equalization at the receiver to combat the problem of inter-symbol interference (ISI) arising from channel frequency-selectivity.
Proceedings ArticleDOI
A two stage PAPR reduction technique for the uplink of LTE-Advanced with carrier aggregation
Abdel-karim Ajami,Hassan Artail +1 more
TL;DR: A novel two stage PAPR reduction scheme based on frequency spacing aware Discrete Fourier Transform (FSA-DFT) is proposed and experimental results show that the proposed technique provides a significant reduction in the P APR of aggregated NxSC-FDMA signal.
Dissertation
Advanced signal and receiver design for next generation OFDM systems
TL;DR: In this article, a rotation invariant subcarrier mapping (RISM) scheme is proposed to cope with the weaknesses and crucial aspects of modern OFDM systems, where the symbols belonging to the modulation alphabet are not anchored, but maintain some degrees of freedom, and the final positions of the transmitted complex symbols are chosen by an iterative optimization process in order to minimize the PAPR of the resulting OFDM symbol.
Proceedings ArticleDOI
An activity selection based single carrier-frequency division multiple access uplink scheduling for LTE networks
TL;DR: Results obtained through simulation show that average blocking rate can be decreased effectively when compared with round-robin, recursive maximum expansion, adaptive resource allocation and allocate as granted-robust SC-FDMA uplink scheduling schemes, and thus enhance the average satisfaction rate, average data rate and fairness index.
References
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Book
OFDM for Wireless Multimedia Communications
Richard van Nee,Ramjee Prasad +1 more
TL;DR: In this paper, the authors present a comprehensive introduction to OFDM for wireless broadband multimedia communications and provide design guidelines to maximize the benefits of this important new technology, including modulation and coding, synchronization, and channel estimation.
Journal ArticleDOI
Frequency domain equalization for single-carrier broadband wireless systems
TL;DR: This article surveys frequency domain equalization (FDE) applied to single-carrier (SC) modulation solutions and discusses similarities and differences of SC and OFDM systems and coexistence possibilities, and presents examples of SC-FDE performance capabilities.
Journal ArticleDOI
Transmission techniques for digital terrestrial TV broadcasting
TL;DR: The authors discuss the potential of OFDM signaling, with its limitations and inherent problems, as well as another potential technique that has so far been overlooked: single-carrier transmission with frequency- domain equalization, and introduces coded-OFDM (COFDM), which makes use of channel coding and frequency-domain interleaving.
Journal ArticleDOI
Fair multiuser channel allocation for OFDMA networks using Nash bargaining solutions and coalitions
Zhu Han,Ji Zhu,K.J.R. Liu +2 more
TL;DR: The proposed algorithms not only provide fair resource allocation among users, but also have a comparable overall system rate with the scheme maximizing the total rate without considering fairness, and have much higher rates than that of the scheme with max-min fairness.
Journal ArticleDOI
Technical solutions for the 3G long-term evolution
Hannes Ekström,Anders Furuskär,Jonas Karlsson,Michael Meyer,Stefan Parkvall,Johan Torsner,M. Wahlqvist +6 more
TL;DR: Promising technologies to fulfil 3G evolution targets are presented, including OFDM, multi-antenna solutions, evolved QoS and link layer concepts, and an evolved architecture, indicating that the requirements can indeed be reached using the proposed technologies.
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