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
DFT-Precoded MIMO OFDM Underwater Acoustic Communications
TL;DR: This paper provides a comprehensive investigation on the DFT-precoded OFDM UWA communication with a multiple-input–multiple-output (MIMO) configuration, and corroborates its superiority for implementing a practical UWA Communication modem.
Proceedings ArticleDOI
Impact of Radio Resource Allocation and Pulse Shaping on Papr of SC-FDMA Signals
TL;DR: It is shown that distributed FDMA (DFDMA) signals with raised cosine filtering experience reduced PAPR as a increases, however, for LFDMA signals the P APR increases with increasing alpha and further varies according to the allocated resource unit.
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Uplink resource allocation in SC-FDMA wireless networks
TL;DR: The article summarizes the activities and recent advances on this work-in-progress area, highlights the key features, advantages and disadvantages of each algorithm, and provides a detailed qualitative comparative evaluation of their attributes and characteristics according to several distinct features.
Proceedings ArticleDOI
45.2Tb/s C-band WDM transmission over 240km using 538Gb/s PDM-64QAM single carrier FDM signal with digital pilot tone
Tetsuro Kobayashi,Akihide Sano,Akihiko Matsuura,M. Yoshida,Toshikazu Sakano,Hirokazu Kubota,Yutaka Miyamoto,Koichi Ishihara,Masato Mizoguchi,Munehiko Nagatani +9 more
TL;DR: In this article, the authors demonstrate 45.2Tb/s 50GHz-spaced WDM transmission over 240km (3 × 80km) in C-band using 538 Gb/S PDM-64QAM single-carrier frequency-division-multiplexed (SC-FDM) signal with digital pilot tone.
Proceedings ArticleDOI
Performance evaluation of Low Density Spreading Multiple Access
TL;DR: It is shown that using MC-LDSMA can considerably reduce the required transmission power and increase the spectral efficiency and fairness among the users.
References
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Transmission techniques for digital terrestrial TV broadcasting
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