Carrier Interferometry Coded Single Carrier FDMA (CI/SC-FDMA) for Next Generation Underwater Acoustic Communication

Trivedi, Vinay Kumar; Kumar, Preetam

doi:10.1007/s11277-017-4119-1

Cited by 11 publications

(6 citation statements)

References 23 publications

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“…Traditional methods for deterministic multiuser UWA transmissions are inspired by radio communications and adapted to the UWA channel. As examples, we can cite the Time-Division Multiple Access (TDMA) [7], Frequency Divsion Multiple Access (FDMA) [8], Code-Division Multiple Access (CDMA) [9], and Multi-Carrier Code-Division Multiple Access (MC-CDMA) [10] transmissions. Typically, FDMA is considered inefficient, since the UWA channel has limited bandwidth and exhibits a large Doppler spread that requires guard frequency bands between users, leading to wasting of the data rate.…”

Section: Introductionmentioning

confidence: 99%

Multiuser Chirp Spread Spectrum Transmission in an Underwater Acoustic Channel Applied to an AUV Fleet

Bernard¹,

Bouvet²,

Pottier³

et al. 2020

Sensors

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The objective of this paper is to provide a multiuser transmission technique for underwater acoustic communication in the framework of an Autonomous Underwater Vehicle (AUV) fleet. By using a variant of a Hyperbolically Frequency-Modulated (HFM) signal, we describe a new family of transmission techniques called MultiUser Chirp Spread Spectrum (MU-CSS), which allows a very simple matched-filter-based decoding. These techniques are expected to provide good resilience against multiuser interference while keeping good robustness to Underwater Acoustic (UWA) channel impairments like Doppler shift. Their implementation for the UWA scenario is described, and the performance results over a simulated shallow-water UWA channel are analyzed and compared against conventional Code-Division Multiple Access (CDMA) and Time-Division Multiple Access (TDMA) transmission. Finally, the feasibility and robustness of the proposed methods are verified over the underWater AcousTic channEl Replay benchMARK (Watermark), fed by several channel responses from sounding experiments performed in a lake.

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Section: Introductionmentioning

confidence: 99%

Multiuser Chirp Spread Spectrum Transmission in an Underwater Acoustic Channel Applied to an AUV Fleet

Bernard¹,

Bouvet²,

Pottier³

et al. 2020

Sensors

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“…Because of the nature of the wireless communication system, any transmitted signal is exposed to fading effects [1], [2]. Fading effects can lead to performance loss on communication system.…”

Section: Introductionmentioning

confidence: 99%

“…In a cooperative network, there is at least one source, one receiver and one relay; the signal is transmitted to the receiver at least over two channels. Cooperative network achieve spatial diversity effect for wireless communication systems [2]. Cooperative network is a promising technology for 5G communication since it enhances system data transfer rates and uses system resources effectively [1].…”

Section: Introductionmentioning

confidence: 99%

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On the Effect of Relay Position in Carrier Interferometry OFDM for Cooperative Diversity by Wavelet Transform

Çiflikli¹,

Yazlik²

2019

ujme

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In a wireless communication system, cooperative diversity can be used to combat fading effects. In cooperative di versity, the system uses idle antennas, which are located at different locations, as relays. Cooperative communication with OFDM is widely used in communication systems and it enhances communication performance of the system. There are different methods to enhance the performance of OFDM systems, carrier interferometry code is one of them. While, carrier interferometry code increase the performance of the system and also reduces PAPR level. Carrier interferometry codes can be implemented on an OFDM system by using FFT and wavelet. In this paper we investigate the effect of the relay position on the carrier interferometry cooperative OFDM system which uses wavelet transform. The effect of the relay position is investigated over different combiners and relaying strategies. The results show that, relay position effects the performance of the system and optimal location for the relay is right between source and destination.

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“…To realize the full advantage of SC‐FDMA systems, the PAPR should be minimized and the CFO should be compensated. In , a novel carrier interferometry spreading is proposed for SC‐FDMA systems for power‐hungry and reliable underwater communications in the uplink.…”

Section: Introductionmentioning

confidence: 99%

Simplified approach for symbol error rate analysis of SC-FDMA scheme over Rayleigh fading channel

2018

Self Cite

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In this paper, we present a comprehensive analytical study of the symbol error rate (SER) of single-carrier frequency-division multiple access (SC-FDMA) with zero-forcing frequency domain equalization (ZF-FDE) over a Rayleigh fading channel. SC-FDMA is considered as a potential waveform candidate for fifth-generation (5G) radio access networks (RANs). First, the N C fold convolution of the noise distribution of an orthogonal frequency-division multiplexing (OFDM) system is computed for each value of the signal-to-noise ratio (SNR) in order to determine the noise distribution of the SC-FDMA system. N C is the number of subcarriers assigned to a user or the size of the discrete Fourier transform (DFT) precoding. Here, we present a simple alternative method of calculating the SER by simplifying the N C fold convolution using time and amplitude scaling properties. The effects of the N C fold convolution and SNR over the computation of the SER of the SC-FDMA system has been separated out. As a result, the proposed approach only requires the computation of the N C fold convolution once, and it is used for different values of SNR to calculate the SER of SC-FDMA systems. K E Y W O R D SBER, noise characterization, OFDMA, Rayleigh, SC-FDMA, SER, zero-forcing | INTRODUCTIONOrthogonal frequency-division multiplexing (OFDM) is used primarily to protect against the detrimental effects of wireless multipath channels. By sampling the received signal at an optimum time, the receiver can avoid the intersymbol interference (ISI) caused by fading environments up to the length of the cyclic prefix (CP) being used [1,2]. Moreover, for this reason, the CP is chosen to be slightly longer than the maximum delay spread of the fading channel. To summarize the advantages, OFDM systems transmit multiple low-data-rate subcarriers, resistant to multipath, spectrally efficient, and the frequency-domain representation further simplifies the error correction at the receivers and reduces the complexities involved in multiple-input multiple-output (MIMO) implementation. OFDM also supports multiple users or multiaccess scheduling. The primary design criteria for an OFDM-based communication system are the maximum delay spread, maximum Doppler frequency, and the targeted cell size.However, OFDM has two significant drawbacks. First, the high peak-to-average power ratio (PAPR) results in problems at the amplifiers. The other disadvantage is related to the tightly spaced subcarriers that are induced to compensate the loss of bandwidth due to CP insertion. The subcarriers start to lose orthogonality because of frequency errors [3]. Aside from the CP overhead and high sensitivity to frequency, the timing offset limits the performance of OFDM systems. The undesirable high PAPR of OFDM led the third generation partnership project (3GPP) to choose a different modulation format for the long-term evolution (LTE) uplink, namely the single-carrier frequency-division multiple access --

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Carrier Interferometry Coded Single Carrier FDMA (CI/SC-FDMA) for Next Generation Underwater Acoustic Communication

Cited by 11 publications

References 23 publications

Multiuser Chirp Spread Spectrum Transmission in an Underwater Acoustic Channel Applied to an AUV Fleet

Multiuser Chirp Spread Spectrum Transmission in an Underwater Acoustic Channel Applied to an AUV Fleet

On the Effect of Relay Position in Carrier Interferometry OFDM for Cooperative Diversity by Wavelet Transform

Simplified approach for symbol error rate analysis of SC-FDMA scheme over Rayleigh fading channel

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