Analysis and Rectification of the Asynchronous Sampling Effect in the Pulse-Position Modulation Systems

Yan, Kun; Cheng, Shunli; Wu, Hsiao-Chun; Xiao, Hailin; Zhang, Xiangli

doi:10.1109/jsen.2019.2963770

Cited by 5 publications

(3 citation statements)

References 30 publications

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“…To address this problem, this paper proposed a waveform design method for coupling time-hopping and PPM, which enables certain orthogonality between different TH-PPM symbols, allowing demodulation with parallel matched filter for TH-PPM receiver, which can reduce the time synchronization accuracy requirements and facilitate engineering implementation. The new TH-PPM signal can be represented by Equation (3).…”

Section: New Th-ppm Transceivermentioning

confidence: 99%

“…PPM is a communication technology that conveys information through discrete pulses in the time domain [ 1 ] and assigns multiple information bits to each symbol of Q -ary PPM. Known for its high energy efficiency, PPM contributes positively to scenarios with power limitations [ 2 , 3 , 4 ]. On the other hand, TH stands as a spread spectrum technology endowed with multiple-access capability, achieving through orthogonal time-hopping sequences.…”

Section: Introductionmentioning

confidence: 99%

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A Novel Non-Coherent Q-Ary TH-PPM Transceiver

Wang,

Tian,

et al. 2023

Sensors

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Time-hopping pulse position modulation (TH-PPM) stands out as a secure communication due to the pseudo-random characteristics of its time-hopping sequence. However, the conventional TH-PPM transceiver encounters challenges in implementation, particularly in achieving the requisite high precision for synchronization. This paper introduces a novel non-coherent Q-ary TH-PPM transceiver, designed to surpass the Bit error rate (BER) performance of conventional TH-PPM transceivers in scenarios under non-ideal synchronization conditions, which also being straightforward to implement. Firstly, we provide an overview of the conventional TH-PPM transceiver. Secondly, the novel TH-PPM transceiver is introduced. In this context, a novel method for generating the TH-PPM signal is proposed for the transmitter, and a parallel matched-filter algorithm, adapted to the new TH-PPM signal, is presented for the receiver. Subsequently, the investigation delves into an in-depth analysis of BER performance, considering both ideal synchronization conditions and non-ideal synchronization conditions, for both the conventional and the new TH-PPM transceiver. Furthermore, the paper proposes a numerical simulation to validate the theoretical findings. The results demonstrate that the new TH-PPM transceiver outperforms the conventional counterpart by showing better BER performance in scenarios with non-ideal synchronization conditions.

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Section: New Th-ppm Transceivermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Novel Non-Coherent Q-Ary TH-PPM Transceiver

Wang,

Tian,

et al. 2023

Sensors

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“…In particular, after the FCC licensed the 3–10 GHz band to ultra wideband (UWB) technology for free, UWB communication technology has been studied a great deal. PPM, as a technology to realize UWB communication, has also been studied to a great extent [ 11 , 12 ], including regarding its bit error performance [ 13 , 14 , 15 , 16 , 17 , 18 ]. However, most of the literature on wireless communication has studied the binary PPM system, and only a small amount of the literature has focused on the Q -ary PPM system [ 19 , 20 ].…”

Section: Introductionmentioning

confidence: 99%

BER Performance Analysis of Non-Coherent Q-Ary Pulse Position Modulation Receivers on AWGN Channel

Shi¹,

Sun

Tian³

et al. 2021

Sensors

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This paper introduces the structure of a Q-ary pulse position modulation (PPM) signal and presents a noncoherent suboptimal receiver and a noncoherent optimal receiver. Aiming at addressing the lack of an accurate theoretical formula of the bit error rate (BER) of a Q-ary PPM receiver in the additive white Gaussian noise (AWGN) channel in the existing literature, the theoretical formulas of the BER of a noncoherent suboptimal receiver and noncoherent optimal receiver are derived, respectively. The simulation results verify the correctness of the theoretical formulas. The theoretical formulas can be applied to a Q-ary PPM system including binary PPM. In addition, the analysis shows that the larger the Q, the better the error performance of the receiver and that the error performance of the optimal receiver is about 2 dB better than that of the suboptimal receiver. The relationship between the threshold coefficient of the suboptimal receiver and the error performance is also given.

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Performance analysis of L-PPM modulated NLOS-VLC system with perfect and imperfect CSI

Dixit

Kumar

2020

J. Opt.

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Visible light communication (VLC) has evolved in the last few years as an alternative to radio frequency communication technology. In this paper, the performance analysis of pulse position modulated (PPM) VLC system is presented over non-line of sight (NLOS) channel. Specifically, an L-PPM modulated VLC system is considered in which the communication occurs through single-order reflected components as there is no existence of line of sight (LOS) link between transmitter and receiver. The reflection points on the walls of the room are randomly distributed. The Gaussian approximation is used to derive the bit-error-rate (BER) of the proposed VLC system with perfect and imperfect channel state information available at the receiver. For the given transmitting power, L-PPM modulated NLOS-VLC system, (L > 2), improves the system BER significantly than that of on-off keying modulated NLOS-VLC system. The error performance of the L-PPM modulated NLOS-VLC system is also compared with that of L-PPM modulated LOS-VLC system. For the parameters of interest, the error performance of L-PPM modulated NLOS-VLC system is observed.

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Analysis and Rectification of the Asynchronous Sampling Effect in the Pulse-Position Modulation Systems

Cited by 5 publications

References 30 publications

A Novel Non-Coherent Q-Ary TH-PPM Transceiver

A Novel Non-Coherent Q-Ary TH-PPM Transceiver

BER Performance Analysis of Non-Coherent Q-Ary Pulse Position Modulation Receivers on AWGN Channel

Performance analysis of L-PPM modulated NLOS-VLC system with perfect and imperfect CSI

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