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
Sparse Channel Estimation of Single Carrier Frequency Division Multiple Access Based on Compressive Sensing
TL;DR: Simulation results show that the proposed compressive sensing for sparse channel estimation in a SC-FDMA system can achieve significantly improved performance in a frequency selective fading sparse channel with fewer pilots.
Proceedings ArticleDOI
60 GHz millimeter-wave bottom-layer solutions: Multiplexing access, energy awareness, and peak-to-average-power ratio
TL;DR: It is shown that the multiplexing protocol has advantages over TDMA, self-sustainability is feasible, and SC-FDMA reduces the PAPR of the modulated signal.
Proceedings ArticleDOI
Filter Bank-based Multiple Access in Next Generation Satellite Uplinks: A DVB-RCS2-based Experimental Study
TL;DR: A comparative study, based on total degradation (TD), of frequency division multiple access (FDMA) schemes employing offset quadrature amplitude modulation-based filter bank multicarrier (FBMC/OQAM), classical orthogonal FDMA (OFDMA) and their single-carrier counterparts, to illustrate the potential gains from the integration of the FBMC waveforms in the satellite context and standards.
Patent
Systems/methods of adaptively varying a spectral content of communications
TL;DR: In this paper, the spectral content of a baseband waveform is varied and a measure of the BS waveform whose spectral content has been varied is used by a transmitter in order to convey information.
Multi-Cell Uplink Radio Resource Management. A LTE Case Study
TL;DR: This study explores the enhancement of LTE network in the Uplink (UL) direction at system level in the UL LTE and the interaction of antenna downtilting together with UL Fractional Power Control (FPC) is also analyzed.
References
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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.
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Transmission techniques for digital terrestrial TV broadcasting
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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.
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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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