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

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

In present day aggressive electrical software industry, trustworthy and real-time details turn into the most important issue for trustworthy supply of strength to the end-users, profitability of the electrical software and patron pride. The operational and advertisement calls for of electrical utilities require a high-performance information verbal exchange community that helps either current functionalities and destiny operational requisites. during this appreciate, due to the fact this kind of communique community constitutes the middle of the electrical method 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, net dependent digital inner most Networks, strength 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 which could supply heterogeneous electrical process automation program requisites. during this regard, our target is to offer a established 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 strategy more suitable and direct.

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We can note how the number of search_IP2 and goodbye packets is the same. Due to the Gradual_Merging mechanism, the nodes that switch to a network with a different NetID at first send a goodbye packet, then return to the state Requester and invest an Initiator to start the search_IP2 procedure. In order to obtain some measurements independently from the type of simulations, Fig. 15 shows the number of packets generated in the time unit T according to the variation of the number of nodes. The traffic is mainly due to the operations of initial configuration of the nodes (search_IP1 and initialize1).

This behavior is due to the variation in the density of nodes in the simulation area. In fact, when the number of nodes increases, the time intervals during which Requesters remain isolated decrease. Thus, the configuration times decrease too see Fig. 12. The traffic introduced by the other AIPAC packets is shown in Fig. 13(a)–(d). The histograms show how the different types of packets contribute to the total traffic with reference to the procedures of initial configuration of nodes (A), of Gradual_Merging (B), and of management of partitioning (C) for sets of 10, 20, 40 and 60 nodes, respectively.

Fazio et al. / Computer Networks 50 (2006) 898–920 the simulation, the probability of a collision on addresses is nearly zero. 4, we will present new simulations, limiting the set of values available for the IP address allocation, to evaluate used_IP1 and used_IP2 traffic. The number of search_IP packets is double than the number of initialize packets, both in phase 1 and in phase 2. The reason is that the protocol provides for the double retransmission of the search_IP packet if no collision occurs before the Initiator sends the address to the Requester, to recover possible lost packets.

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