چكيده به لاتين
The Smart Grid as a solution to the shortcomings of the existing power supply system, requires a reliable communication infrastructure to provide two-way communications between customers and suppliers as well as distributed control of the power grid. Recently, extensive studies have been conducted in the area of Smart Grid communication infrastructure which include a wide range of communication technologies. Among these, wireless networks have received significant attention from the research community; due to their lower installation cost and more rapid deployment.
In this work, we focus on the wireless communications in the Advanced Metering Infrastructure (AMI) part of Smart Grid. First we select one of the wireless architectures introduced for the Neighborhood Area Network (NAN) section, and then we propose a cooperation mechanism among the network nodes. To this end, we use Auction, which is a technique for cooperation and competition in Multi-Agent Systems. We also try to reduce the delay in sending energy reservation information, and by using the auction, we give high priority to the customers with higher consumption that have more impact on estimation error. Therefore, suppliers can obtain a more accurate estimation of the energy consumption. The main idea in order to perform this auction on the network, is to use control frames of IEEE 802.11 in Medium Access Control (MAC) layer. For this purpose, we introduce a new control frame which is used to send auction bids. We provide simulation results using NS-2 simulator, to evaluate the proposed method. The results are investigated in terms of delay and retransmission rate. Comparing these results, we can see better improvement in delay metric which is caused by reduced waiting time to access the medium.
Keywords: Smart Grid, Wireless communications, Multi-agent systems, Medium Access Control, Quality of Service (QoS).
