From Homogeneous to Heterogeneous: An Analytical Model for IEEE 1901 Power Line Communication Networks in Unsaturated Conditions

2019 ◽  
Vol E102.B (8) ◽  
pp. 1636-1648 ◽  
Author(s):  
Sheng HAO ◽  
Huyin ZHANG
Keyword(s):  
Communication Networks ◽  
Analytical Model ◽  
Power Line ◽  
Power Line Communication

scholarly journals MAC Performance Analysis for Reliable Power-Line Communication Networks with ARQ Scheme

Sensors ◽  
2020 ◽  
Vol 21 (1) ◽  
pp. 196
Author(s):  
Sheng Hao ◽  
Huyin Zhang
Keyword(s):  
Performance Analysis ◽  
Communication Networks ◽  
Analytical Model ◽  
Channel Model ◽  
Power Line ◽  
Buffer Size ◽  
Power Line Communication ◽  
Link Layer ◽  
Industrial Iot ◽  
The Impact

Power-line communication (PLC) networks have been increasingly used for constructing industrial IoT (internet of things) and home networking systems due to their low-cost installation and broad coverage feature. To guarantee the transmission reliability, ARQ (automatic repeat request) scheme is introduced into the link layer of reliable PLC networks, which allows the retransmission of a data frame several times so that it has a higher probability to be correctly received. However, current studies of performance analysis for PLC MAC (medium access control) protocol (i.e., IEEE 1901) do not take into account of the impact of ARQ scheme. To resolve this problem, we propose an analytical model to investigate the MAC performance of IEEE 1901 protocol for reliable PLC networks with ARQ scheme. In the modeling process, we first establish a PLC channel model to reflect the impacts of PLC channel types (containing Rayleigh fading and Log-normal fading), additive non-Gaussian noise feature and ARQ scheme on data transmission at link layer. Next, we employ Renewal theory and Queueing dynamics to capture the transmission attempt behavior of executing IEEE 1901 protocol in the unsaturated environment with finite transit buffer size. On the basis of combining these two models, we derive the closed-form expressions of 1901 MAC metrics considering the influence of the ARQ scheme. Furthermore, we prove that the proposed analytical model has the convergence property. Finally, we evaluate the MAC performance of 1901 protocol for reliable PLC networks with ARQ scheme and verify the proposed analytical model.

An Edge-Computing Paradigm for Internet of Things over Power Line Communication Networks

IEEE Network ◽  
2020 ◽  
Vol 34 (2) ◽  
pp. 262-269
Author(s):  
Yuwen Qian ◽  
Long Shi ◽  
Jun Li ◽  
Xiangwei Zhou ◽  
Feng Shu ◽  
...  
Keyword(s):  
Internet Of Things ◽  
Communication Networks ◽  
Power Line ◽  
Edge Computing ◽  
Power Line Communication ◽  
Computing Paradigm

scholarly journals Study of power line communication modems for automotive communication networks

2021 ◽  
Author(s):  
Peter Nisbet
Keyword(s):  
Communication Networks ◽  
Impedance Matching ◽  
Power Line ◽  
Power Line Communication ◽  
Hvac System ◽  
Critical Systems ◽  
Test Bed ◽  
Matching Network ◽  
Vehicle Communication ◽  
Active Inductors

Power line communication (PLC) technology has become very attractive in the automotive sector. As vehicle manufacturers aim to produce vehicles with improved fuel economy, comfort and technology, they are limited by current vehicle communication networks due to increased bulk and complexity. PLC technology has been suggested as a solution for this issue by utilizing existing power wires as a communication channel. However reliability is a big challenge with PLC technology, especially with critical systems such as braking, steering and engine control. This thesis studies the feasibility, reliability and possible improvements of PLC for controlling vehicle subsystems such as heating, ventilation and air conditioning (HVAC) system. In order to determine feasibility, several modems were examined for cost and ease of implementation. After selecting a modem solution, the PLC prototype modem was tested on an HVAC system test bed to control various fans, blowers and pumps over a DC power line. The PLC solution was then tested using a 2003 Ford Focus ZTS and a 2011 Ford Edge SE. The tests consisted of repeatedly sending a code from a transmitter connected to the vehicle battery while a receiver was connected to a power port inside the vehicle. The tests were run in several vehicle states e.g. Off, electronics on engine off and engine idle. The results from the tests showed that communication can be established over a vehicle power line with reasonable cost and ease. However reliability of the proposed solution needs to be improved before it can be implemented in vehicles. To improve performance of the proposed PLC solution, an impedance matching network for PLC was proposed. From current research an adaptive matching network utilizing active inductors and capacitor banks was designed and simulated. The designed matching network was simulated with several different automotive loads such as a vehicle battery and various lights. Simulations results showed the proposed matching network was capable of matching impedances with all the simulated automotive loads. When the circuit was built up and tested, there were issues with stability and cost of construction. The results show that more work needs to be done before PLC can become a suitable solution in vehicle communication network. With improvements such as impedance matching, line drive ability and robust modulation schemes, it won't be long before PLC will be a viable vehicle network solution.

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