Abstract
Smart grid is an energy network that integrates advanced power equipment, communication technology and control technology. It can transmit two-way power and data among all components of the grid at the same time. The existing smart grid communication technologies include power line carrier (PLC) communication, industrial Ethernet, passive optical networks and wireless communication,each of which have different advantages. Due to the complex application scenarios, massive sampling points and high transmission reliability requirements, a single communication method cannot fully meet the communication requirements of smart grid, and heterogeneous communication modes are required. In addition, with the development of cellular technology, long term evolution (LTE)-based standards have been identified as a promising technology that can meet the strict requirements of various operations in smart grid. In this paper, we analyze the advantages and disadvantages of PLC and LTE communication, and design a network framework for PLC and LTE communication uplink heterogeneous communication in smart grid. Then, we propose an uplink scheduling transmission method for sampling data with optimized throughput according to the requirements of system delay and reliability. Then, we use the formula derivation to prove the stability and solvability of the scheduling system in theory. Finally, the simulation results show that under the condition of satisfying the delay requirement, our proposed framework can optimally allocate the wireless communication resource and maximize the throughput of the uplink transmission system.
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This work is supported in part by grants from the National Natural Science Foundation of China (52077049, 51877060), Anhui Provincial Natural Science Foundation (2008085UD04), Fundamental Research Funds for the Central Universities (PA2020GDJQ0027, JZ2019HGTB0089, PA2019GDQT0006), the 111 Project (BP0719039), and State Grid Science and Technology Project (Research and application of key Technologies for integrated substation intelligent operation and maintenance based on the fusion of heterogeneous network and heterogeneous data).
Note that this paper is an extended version of our MONAMI 2020 conference paper [1]. In this paper, we augment the system model by including packet loss rate of PLC and the throughput per unit time of PLC and LTE. Besides, the stability of our scheduling method is also proved, as well as more experiments are performed in addition to our conference paper.
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Li, Q., Cao, T., Sun, W. et al. An Optimal Uplink Scheduling in Heterogeneous PLC and LTE Communication for Delay-aware Smart Grid Applications. Mobile Netw Appl 26, 1986–1999 (2021). https://doi.org/10.1007/s11036-021-01739-z
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DOI: https://doi.org/10.1007/s11036-021-01739-z