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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Proceedings ArticleDOI
An alternative multiple access scheme for the uplink 3GPP/LTE based on OFDM/OQAM
TL;DR: This paper proposes to combine OFDM/OQAM with Frequency Division Multiple Access (FDMA) to get an alternative to the well-known Orthogonal Frequency Division multiple access techniques for the uplink (UL) transmission in the 3GPP/LTE context and names this alternative OQAMA.
Proceedings ArticleDOI
C-band digital aeronautical communication for unmanned aircraft systems
TL;DR: This paper discusses the application of OFDM- and SC-FDMA-based communication links and test them against three flight scenarios: en-route, take-off and landing, and airport using Monte-Carlo simulations and suggests different coding schemes and shows that iterative decoding processes have disadvantages in case of insufficient channel estimation.
Proceedings ArticleDOI
Closed-Form BER Expression for Interleaved SC-FDMA with M-QAM
Juan J. Sanchez-Sanchez,Unai Fernandez Plazaola,Mari Carmen Aguayo-Torres,José Tomás Entrambasaguas +3 more
TL;DR: This study provides the mathematical grounds to obtain a closed-form expression for the BER for BPSK and square M-QAM in an interleaved SC-FDMA system over a fading channel.
Proceedings ArticleDOI
Improving Energy Efficiency and Scalability for IoT Communications in 5G Networks
Gary Su,Melody Moh +1 more
TL;DR: The Enhanced OEA (Opportunistic Efficient Allocation) algorithm has been proposed to advance SC-FDMA for 5G uplink transmission, and improves both decision metric and algorithm design, resulting in smaller computation complexity than the original OEA algorithm.
Journal ArticleDOI
Channel and Bit Adaptive Power Control Strategy for Uplink NOMA VLC Systems
TL;DR: A channel and bit adaptive power control strategy for uplink NOMA VLC systems is proposed by jointly considering the channel state information and the transmission bit rate and it is proved that the received signal at the photodiode receiver constitutes a sizeable pulse amplitude modulation constellation and low-complexity maximum likelihood detection is admitted.
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