The design of an experimental computer LAN interconnection in university environment

Abstract

This paper, considering the practical situation in our university, gives the design scheme of an experimental computer LAN in the university environment containing several campuses. That is, in a building or a restricted range (about 500 m) some microcomputers are connected with a twisted-pair wire using a baseband transmission method without any modems to constitute a microcomputer LAN sub-system. In a campus, some microcomputer LANs are interconnected with communication cables through gateways to constitute an intra-campus sub-system. In the inter-campus, or inter-university, these intra-campus sub-systems form a decentralized control and collision-free inter-campus radio communication system based on the principle of the spread spectrum. Connecting all the three systems, we can constitute a completely distributed processing system within the university environment.