A survey on communication networks for electric system by Gungor V.C., Lambert F.C.

By Gungor V.C., Lambert F.C.

In contemporary aggressive electrical software industry, trustworthy and real-time info turn into the major issue for trustworthy supply of strength to the end-users, profitability of the electrical software and patron delight. The operational and advertisement calls for of electrical utilities require a high-performance facts verbal exchange community that helps either latest functionalities and destiny operational requisites. during this admire, because the sort of communique community constitutes the middle of the electrical procedure automation functions, the layout of a cheap and trustworthy community structure is important. during this paper, the possibilities and demanding situations of a hybrid community structure are mentioned for electrical approach automation. extra in particular, web dependent digital deepest Networks, energy line communications, satellite tv for pc communications and instant communications (wireless sensor networks, WiMAX and instant mesh networks) are defined intimately. the inducement of this paper is to supply a greater knowing of the hybrid community structure that could supply heterogeneous electrical process automation program standards. during this regard, our goal is to offer a based framework for electrical utilities who plan to make use of new communique applied sciences for automation and as a result, to make the decision-making procedure more advantageous and direct.

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Each entry in the Neighbor_Table contains the address of the neighbor and the NetID of the network it belongs to. Whenever a node decides to disconnect from the network, it sends a goodbye packet in broadcast. Nodes that receives goodbye packets verify if the sending node is in the Neighbor_Table and, in such case, they delete the entry for that node. The TTL (time to live) in a goodbye packet is set to 3, so that if the sending node moves out of the transmission range of its neighbors, the packet will arrive to them anyway.

When the trace file is appropriately generated, it is ready to be animated by Nam. The graphical interface allows to view the topology of the networks and their evolution throughout the time. The software we have developed allows to generate a trace file so that the nodes that want to join the network and are searching for a valid address are viewed in grey, while the nodes that have been configured correctly are viewed in one out of the 10 available colors. The nodes belonging to the same ad hoc network are characterized by the same color.

Variations of the traffic according to igm The simulations have been done by changing the parameter igm of the AIPAC protocol. Our first purpose is to determine the best value of igm to minimize the signaling traffic introduced by the protocol. 4), so this parameter influences the node configuration packets of the phase 2. In fact, only the nodes that already have a valid address can start the Gradual_ Merging procedure. The graph of Fig. 9 shows the progress of the traffic initialize1 according to the variation in the number of nodes, for different values of igm.

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