Characteristics of the PLC channel: Reciprocity, symmetry and port decoupling for impedance matching

Piante, Marco De; Tonello, Andrea M.

doi:10.1109/isplc.2016.7476282

Cited by 11 publications

(10 citation statements)

References 6 publications

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“…where (56) holds when a 1 > a 2 φ 2 . By substituting (26) and (56) into (54), we obtain (25). This completes the proof.…”

Section: Appendix C Proof Of Theoremmentioning

confidence: 53%

“…To simplify the analysis, we assume that the two hops are independent which is a common assumption in the literature [11], [12], [16] and [17]. We assume that the MAC and BC channels are reciprocal in the time division duplex (TDD) operation with negligible pilot overhead [26], [27]. Based on the statistical analyses of real channel data in various operating frequency bands, the PLC channel gain can be modeled by a log-normal distribution [28]- [31].…”

Section: A Channel and Noise Modelsmentioning

confidence: 99%

“…From [47] and applying the Gauss-Chebyshev quadrature, L 1 is given by (26). The term L 2 is derived as…”

Section: Appendix C Proof Of Theoremmentioning

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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“…where (56) holds when a 1 > a 2 φ 2 . By substituting (26) and (56) into (54), we obtain (25). This completes the proof.…”

Section: Appendix C Proof Of Theoremmentioning

confidence: 53%

Section: A Channel and Noise Modelsmentioning

confidence: 99%

See 1 more Smart Citation

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.

View full text Add to dashboard Cite

show abstract

“…For example, higher estimation errors are expected when external electromagnetic interference impinges differently on the two communication ends. It has been shown in [12], that in the case of PLNs this effect is limited. Considering for example the key to be generated from H 2 , Fig.…”

Section: Transmission Matrix Technique Resultsmentioning

confidence: 99%

“…Since the PLC physical channel has some properties in common with the wireless channel, it makes sense to explore physical-layer security (PLS) techniques developed for wireless in the case of PLC. However, it has been shown that the PLC channel, conversely from the wireless one, is rather deterministic, in general not symmetric [11], [12], and moreover has different statistical properties [8].…”

Section: Introductionmentioning

confidence: 99%

Secure PHY Layer Key Generation in the Asymmetric Power Line Communication Channel

Passerini

Tonello

2020

Electronics

Self Cite

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Leakage of information in power line communication networks is a threat to privacy and security both in smart grids and in-home applications. A way to enhance security is to encode the transmitted information with a secret key. Relying on the channel properties, it is possible to generate a common key at the two communication ends without transmitting it through the broadcast channel. Since the key is generated locally, it is intrinsically secure from a possible eavesdropper. Most of the existing physical layer key generation techniques have been developed for symmetric channels. However, the power line channel is in general not symmetric, but just reciprocal. Therefore, in this paper, we propose two novel methods that exploit the reciprocity of the power line channel to generate common information at the two intended users. This information is processed through different quantization techniques to generate secret keys. To assess the security of the generated keys, we analyze the spatial correlation of the power line channels and verify the low correlation of the possible eavesdropping channels. The two proposed methods are tested on a measurement dataset. The results show that the information leaked to possible eavesdroppers has very low correlation to any secret key.

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Performance Analysis of Two-Way Relaying in Cooperative Power Line Communications

Ahiadormey

Anokye

et al. 2019

IEEE Access

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This paper studies the performance of a half-duplex (HD) two-way relay (TWR) in power line communication (PLC) over a log-normal fading channel with impulsive noise. We consider the two common relaying protocols: amplify-and-forward (AF) and decode-and-forward (DF). For the DF relaying, we apply physical-layer network coding (PNC) and analog-network coding (ANC) to the PLC TWR. We derive analytic expressions for the average sum capacity and the outage probability of the system. The Monte Carlo simulations are provided throughout to validate our analysis. The analytical results show a tight approximation to the simulation results. We compare the one-way relay (OWR) to the TWR and show that the HD spectral efficiency loss incurred by the OWR can be sufficiently mitigated in PLC. However, the outage probability of the TWR is inferior to that of the OWR. To enhance the outage performance of the PLC TWR, we implement a hybrid PLC/wireless (HPW) system, where all nodes are equipped with the PLC and wireless capabilities. Data transmission occurs over the two parallel links. The diversity in the transmission allows the TWR to improve its outage performance in the AF and DF protocols. The impact of the impulsive noise, inherent to the PLC channels, is also highlighted in the simulation results. It is shown that the impulsive noise severely impairs system performance. INDEX TERMS Two-way relaying, average capacity, outage probability, power line communication (PLC), PLC/wireless diversity.

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Characteristics of the PLC channel: Reciprocity, symmetry and port decoupling for impedance matching

Cited by 11 publications

References 6 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

Secure PHY Layer Key Generation in the Asymmetric Power Line Communication Channel

Performance Analysis of Two-Way Relaying in Cooperative Power Line Communications

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