A Novel Precoding and Impulsive Noise Mitigation Scheme for MIMO Power Line Communication Systems

Qian, Yuwen; Zhou, Xiangwei; Li, Jun; Shu, Feng; Jayakody, Dushantha Nalin K.

doi:10.1109/jsyst.2018.2880962

Cited by 19 publications

(6 citation statements)

References 32 publications

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“…In the DT transmission mode, where the data transmission occurs at arbitrary rates and adapted to the channel conditions of the nodes, the ergodic rate provides an indication of the maximum achievable transmission rate of the system. 1) Ergodic Rate of User S 1 (S 2 → R → S 1 Link) From (8) and (14), the ergodic rate of the S 2 → R → S 1 link is written as [16], [17], [24]…”

Section: B Ergodic Ratementioning

confidence: 99%

“…For AF and DF relaying, the authors of [12] derived closed-form expressions for the ergodic capacity and showed that TWRs can greatly improve the spectral efficiency (SE) compared to one-way relays (OWRs) in PLC networks. Furthermore, multiple-input multiple-out (MIMO) and orthogonal frequency division multiplexing (OFDM) combined with optimal power allocation are shown to achieve the dual goals of robustness against frequency selectivity and high capacity performance [13], [14].…”

Section: Introductionmentioning

confidence: 99%

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Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Ahiadormey

Anokye

Park

et al. 2020

IEEE Open J. Commun. Soc.

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In this paper, we study the application of cooperative non-orthogonal multiple access (NOMA) in power line communication (PLC) where two users exchange information using a two-way relay (TWR). Under the assumption of perfect and imperfect successive interference cancellation (SIC), we analyze key performance metrics for PLC log-normal channels impaired by impulsive noise. In particular, for delay-limited (DL) and delay-tolerant (DT) modes, approximate closed-form expressions are derived for the user outage probability and user ergodic rate. The analytic results are verified via Monte Carlo simulations. Compared with the conventional orthogonal multiple access (OMA) scheme, the simulation results show that our proposed NOMA TWR enhances the user outage probability and the user ergodic rate performance in the low signal-to-noise ratio (SNR) region. However, this gain diminishes as the imperfect SIC error increases and is non-existent beyond a certain level of imperfect SIC. Furthermore, the system performance is maximized by optimizing the power allocation coefficients where the system throughput and ergodic sum-rate of the NOMA TWR network in DL and DT operation, respectively, are shown to approach a ceiling in the presence of imperfect SIC. The energy efficiency (EE) of the proposed system is also analyzed for DL and DT modes.

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Section: B Ergodic Ratementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Ahiadormey

Anokye

Park

et al. 2020

IEEE Open J. Commun. Soc.

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“…In [3], detecting and eliminating abnormal data and filling missing data are important aspects of the data preprocessing process that are solely based on business characteristics. When abnormal data is excluded, the load curve usually appears smoother and more similar.…”

Section: Introductionmentioning

confidence: 99%

Feature extraction method of HPLC communication signal based on genetic algorithm

Tang¹,

Chang²,

Liang³

et al. 2023

IET Communications

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Communication quality is a key factor affecting the effectiveness of distribution network operation status management. Therefore, it is required that the communication performance of the distribution network management system be good, and the communication signal can directly reflect the communication quality. Therefore, a genetic algorithm (GA) based HPLC communication signal feature extraction method is proposed. The process of constructing reference samples, training recognition models, constructing noise samples, self‐coding denoising processing, and denoising sample recognition has completed the identification of power line channel transmission characteristics. The state feature quantity of the topological line is based on the positioning results of the diagnostic function, and the calculated value of the reflection coefficient calculation model at the head end of the topological line is compared with the measured value. By optimizing the feature quantities containing topological line states through GAs, abnormal feature quantities close to the true state of topological lines are obtained. Experimental analysis shows that this method can correctly identify the position of reactive power compensation in the transmission line, and can also correctly identify the extraction of topological anomaly features. Therefore, the research method is of great significance in improving the safe operation of power systems and extending the service life of topology lines.

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“…Precoding is an important technological enabler to fully exploit the full frequency reuse in the next iterations of the modern wireless terrestrial [1] and multi-user multi-beam satellite communications [2]. MIMO precoded communications are also promissory to be applied in other multi-channel interference scenarios such as in the case of Very-highbit-rate digital subscriber line (VDSL) [3] and Powerline communications [4].…”

Section: Introductionmentioning

confidence: 99%

FPGA Acceleration for Computationally Efficient Symbol-Level Precoding in Multi-User Multi-Antenna Communication Systems

et al. 2019

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In this paper, we demonstrate an FPGA-accelerated design of the computationally efficient symbol-level precoding (SLP) for high-throughput communication systems. The SLP technique recalculates the optimal beam-forming vectors by solving a non-negative least squares problem per every set of transmitted symbols. It exploits the advantages of constructive inter-user interference to minimize the total transmitted power and increase service availability. The benefits of using SLP come with a substantially increased computational load at the gateway. The FPGA design enables the SLP technique to perform in real-time operation mode and provide a high symbol throughput for the multiple receive terminals. We define the SLP technique in a closed-form algorithmic expression and translate it to hardware description language (HDL) and build an optimized HDL core for an FPGA. We evaluate the FPGA resource occupation, which is required for the high throughput multiple-input-multiple-output (MIMO) systems with sizeable dimensions. We describe the algorithmic code, the I/O ports mapping, and the functional behavior of the HDL core. We deploy the IP core to an actual FPGA unit and benchmark the energy efficiency performance of the SLP. The synthetic tests demonstrate a fair energy efficiency improvement of the proposed closed-form algorithm compared to the best results obtained through the MATLAB numerical simulations. INDEX TERMS Convex programming, field programmable gate arrays, hardware resources, multicast communication, MIMO, optimization, precoding, power minimization, interference, wireless channels.

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A Novel Precoding and Impulsive Noise Mitigation Scheme for MIMO Power Line Communication Systems

Cited by 19 publications

References 32 publications

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Two-Way Relaying Non-Orthogonal Multiple Access With Imperfect Successive Interference Cancellation in Power Line Communications

Feature extraction method of HPLC communication signal based on genetic algorithm

FPGA Acceleration for Computationally Efficient Symbol-Level Precoding in Multi-User Multi-Antenna Communication Systems

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