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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Patent
Channel-dependent frequency-domain scheduling in an orthogonal frequency division multiplexing communications system
TL;DR: In this paper, the channel quality metric values (SINR) for each of a plurality of sub-channels are determined, in view of a selected mobile terminal, and an estimated data throughput is calculated for each sub-carrier groups.
Journal ArticleDOI
Enhanced OFDM-NOMA for next generation wireless communication: A study of PAPR reduction and sensitivity to CFO and estimation errors
TL;DR: An improved Minimum Mean Square Error (MMSE) receiver is proposed for low-complexity Joint Equalization and CFO Compensation (JECC) in frequency domain using Banded-Matrix Implementation (BMI).
Proceedings ArticleDOI
SC-FDMA Versus OFDMA: Sensitivity to Large Carrier Frequency and Timing Offsets on the Uplink
TL;DR: The performance advantage of SC-FDMA with MMSE equalizer over OFDMA can be restored by adopting multistage IC techniques, using the knowledge of CFOs and TOs of different users at the receiver.
Journal ArticleDOI
Advances in Cooperative Single-Carrier FDMA Communications: Beyond LTE-Advanced
TL;DR: These discussions demonstrate that these advanced techniques optimally exploit the resources in the context of cooperative single-carrier FDMA system, which is a promising enabler for various uplink transmission scenarios.
Journal ArticleDOI
Single-Carrier Frequency-Domain Equalization With Index Modulation
TL;DR: In order to reduce the inter-channel correlation arising from the activated symbol indices, a symbol mapping algorithm is proposed, which further improves the achievable error-rate performance of the SC-IM scheme.
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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