Adaptation a school building of the mutual complementary network by wireless and wired

Abstract

We propose a mutually complementary wireless and wired network, developed for residences, and adapted for a larger university school building, resulting in practical, realizable communication. The mutually complementary wireless and wired network provided 100% network communication performance in the homes studied, the largest of which was a three-stories 200-square-meter steel-reinforced-concrete building [1]. Experimental evaluation showed that, when the communications system without routing tested on residences was used for a steel-reinforced-concrete university building of 5,365 square meters, with four-stories and one basement level, the system provided 1.0% of its full network communication performance, suggesting that the communication system used for residences would not be applicable to large-scale university buildings. We attempted to introduce a communication system with simpler routing, simulating 450 nodes. The simulation showed that only 11 nodes would require 29 times the amount of routing at maximum, with the number of routes exceeding 400 million, suggesting that a simple communication system such as this could not reduce function loads at terminals. Noting that the university building studied (Tokai University Shonan School No. 9) consists of two types of units - small classrooms and research/study rooms of 100 square meters or less and long passageways - we introduced a simple network that considered each unit. The design evaluation of this simple communication system brings about the possibility of practical application, which we call a "combined communication method" of mutually complementary wireless and wired networks. © 2011 Springer-Verlag.