Abstract
This paper presents an integrated modeling method providing superior Quality of Service (QoS) for wireless sensor networks (WSNs) which is suitable for smart distribution grid (SDG) communication. Traditional QoS model based on IEEE802.15.4 protocol cannot meet the communication requirements of multipriority data in smart distribution grid. In order to meet the specification of power system communication, a new QoS-enabled medium access control (MAC) model based on unfair competition channel access mechanism (UCCAM) is developed in this paper. The proposed model can ensure that the communication system of WSN provides different Qualities of Service for different priority data. According to different requirements for the communication time, the data of SDG are divided into three types: high priority, middle priority, and low priority data. The state transition of buffering queue data in node is described by a three-dimensional Markov chain model. Delay time, effective throughput rate, and channel collision rate models are developed, respectively, to evaluate communication performance of WSN applied in smart distribution grid. The simulation results show that the proposed model can provide different Qualities of Service for different priority data and is more efficient than the IEEE802.15.4e standard and the traditional methods.
Highlights
Smart grid can be regarded as a power system that uses two-way communication and information technology to realize power generation, delivery, and consumption, where real-time monitoring, advanced sensing, communication, analysis, and control are integrated and applied to ensure the safety, reliability, and efficiency of the power system [1]
In order to meet the different requirements of transmission time for different types of communication data, a new QoSMAC model based on unfair competition channel access mechanism is developed and the following aspects need to be noticed in this paper: (1) Remote communication, remote adjustment, remote control, and telemetry data are divided into three types: high priority, middle priority, and low priority in accordance with different requirements of communication time
The purpose is focused on developing Quality of Service (QoS)-medium access control (MAC) model based on unfair competition channel access mechanism, which can provide different QoS for different priority data in this paper where the model can provide an effective and systematic way for the quantitative design of wireless sensor networks (WSNs) communication in smart distribution grid
Summary
Smart grid can be regarded as a power system that uses two-way communication and information technology to realize power generation, delivery, and consumption, where real-time monitoring, advanced sensing, communication, analysis, and control are integrated and applied to ensure the safety, reliability, and efficiency of the power system [1]. In order to meet the different requirements of transmission time for different types of communication data, a new QoSMAC model based on unfair competition channel access mechanism is developed and the following aspects need to be noticed in this paper:. (1) Remote communication, remote adjustment, remote control, and telemetry data are divided into three types: high priority, middle priority, and low priority in accordance with different requirements of communication time.
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