Capacity Performance of Overhead Transmission Multiple-Input Multiple-Output Broadband over Power Lines Networks: The Insidious Effect of Noise and the Role of Noise Models

Abstract

Extending the analysis already presented in [1], this paper considers broadband potential of overhead (OV) transmission multiple-input multiple-output (MIMO) broadband over power lines (BPL) networks when different noise conditions occur and different well-proven noise models are adopted. The contribution of this paper is two-fold. First, the broadband potential of a great number of indicative OV high-voltage (HV) BPL topologies and of MIMO transmission schemes is studied in terms of appropriate capacity metrics. The relevant numerical results reveal the significant dependence of ΜΙΜΟ capacity metrics on noise conditions. Second, various well-known BPL noise models from the literature are compared on the basis of their achieved OV HV MIMO BPL capacity. Through the careful study of the capacity results of noise models, it is demonstrated that spectrally flat additive white Gaussian noise (AWGN) may be comfortably assumed as an efficient noise model in transmission MIMO BPL networks. Also in MIMO BPL networks, the comparative capacity analysis of noise models shows small differences among them in the 3-88MHz frequency range.

Measurement Differences, Faults and Instabilities in Intelligent Energy Systems – Part 1: Identification of Overhead High-Voltage Broadband over Power Lines Network Topologies by Applying Topology Identification Methodology (TIM)

“…In accordance with [5], [6], [8], [40], [41], the ground with conductivity g  =5mS/m and relative permittivity rg  =13 is considered as the reference conductor. The aforementioned ground parameters define a realistic scenario during the following analysis while the impact of imperfect ground on broadband signal propagation via OV HV power lines was analyzed in [5], [6], [14]- [17], [21], [25], [40], [42], [43].…”

“…Since OV HV BPL networks suffer from various inherent deficiencies such as high and frequency-selective channel attenuation and noise, BPL networks are divided into cascaded BPL topologies in order to cope with these deficiencies [1], [5], [8], [14]- [17], [44], [45]. Each OV HV BPL topology, which is denoted as network module, is bounded by the transmitting and receiving end where respective BPL repeaters are installed.…”

“…Nevertheless, when considered as a medium for the transmission of communications signals, OV HV BPL networks are subjected to various inherent deficiencies such as high and frequency-selective channel attenuation and noise [5], [8], [14]- [17]. The broadband potential of OV HV BPL networks is significantly influenced by each of the aforementioned insidious factors [18], [19].…”

“…As the channel attenuation is concerned in this paper, the well-established hybrid method, which is employed to examine the behavior of multiconductor transmission line (MTL) structures, is also adopted in this paper [5]- [7], [14]- [17], [20]- [27]. Successfully tested in various transmission and distribution BPL networks [8], [24], [28], the hybrid method is based on: (i) a bottom-up approach that consists of the MTL theory, eigenvalue decomposition (EVD) and singular value decomposition (SVD) [7], [14], [18], [22], [25], [27], [29], [30]; and (ii) a top-down approach that is denoted as TM2 method and is based on the concatenation of multidimensional chain scattering matrices [5]- [7], [14]- [17], [20]- [22], [26], [29]. When the OV HV BPL network topology, OV HV MTL configuration and the applied coupling scheme are given as inputs, the hybrid method gives as an output the corresponding transfer function.…”

Power Systems Stability through Piecewise Monotonic Data Approximations – Part 1: Comparative Benchmarking of L1PMA, L2WPMA and L2CXCV in Overhead Medium-Voltage Broadband over Power Lines Networks

“…To achieve these data rates, various inherent BPL deficiencies, such as high and frequency-selective channel attenuation and noise, should be overcome [8]- [13].…”