Abstract
In traditional smart grid, data aggregator (DA) and distribution box (DB) send the data collected by sensors to base station (BS) through cellular interface, which is called single-hop communication mode (SCM). In smart grid, different data packets have different delay priorities and the BS cannot satisfy all the delay requirements of different data because of limited resources through SCM. In order to meet the QoS requirements of different priority data, we propose a new scheme: enhanced hybrid communication mode (EHCM), by introducing multihop communication mode (MCM) into this scenario to improve the network's performance by adding another wireless interface on each node. Our scheme EHCM consists of two parts: the intracell data transmission and the cell edge data transmission. In the first part, we propose a solution to choose a relay node according to the node's energy consumption and its residual energy and a solution to forward packets based on its priority and residual lifetime (RLT). In the second part, the tasks of data transmission can be delivered from the congested DB nodes to the adjacent idle ones to provide optimal performance. At last, the simulation shows that our scheme can satisfy the performance requirement of smart grid.
Highlights
Many problems and challenges need to be addressed all around the world, including generation diversification, demand response, energy conservation, and reduction of the industry’s overall carbon dioxide
Some information collected by sensors may carry urgent control messages that must be delivered to the data management center (DMC) at once, while some may be related to the environmental parameters which are less important
The background grid network we study in this paper consists of distribution grid and smart meter grid, which is called Distribution&Smart-Meter grid in this paper, and there are mainly five components: data management center (DMC), base station (BS), smart meter (SM), data aggregator (DA), and distribution box (DB)
Summary
Many problems and challenges need to be addressed all around the world, including generation diversification, demand response, energy conservation, and reduction of the industry’s overall carbon dioxide. If some faults happen in the transmission grid network of traditional power grid, professionals are sent to find what is wrong in the networks and repair it This is not the case in smart grid. A large number of sensors are installed in the distribution grid network, such as smart meters; they are mainly used to collect the users information. These sensors can bring many benefits to both users and power providers. Some information collected by sensors may carry urgent control messages that must be delivered to the data management center (DMC) at once, while some may be related to the environmental parameters which are less important.
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