The ieee 802 working group defined the local area network lan as a communication system through a shared medium, which allows independent devices to communicate. Introduction to wireless local area networks springerlink. In this course, well be primarily concerned with local area networks. Wireless local area networking for device monitoring ece. The introduction of this paper identified three hardware. A local area network lan is a group of computers and peripheral devices that share a common communications line or wireless link to a server within a distinct geographic area. In this thesis, a wireless local area networking technique is developed, which. Local area networks university of california, berkeley. The communications range for vhf and uhf fm simplex is usually limited to your local area 515 miles. This network could be as small as two computers that are connected to each other or large, with thousands of devices connected.
Types of network structureslan local area network man metropolitan area network wan wide area network wireless mobile networks. Introduction to local area networks lans network architecture geographical area lan applications lan technologies ethernet fiber distributed data interface fddi. If you live high on a mountain and use a highgain directional antenna, you may be able to extend your. I initially developed this material as a single weeks lecture in the si502networkedcomputingcourse that i taught at the univer. Actively and regularly scan for rogue access points and vulnerabilities on the corporate network, using available wlan management tools. If the network cable contains noise suppression circuitry 1, which. Local area networks lan 02 km, metropolitan area networks man 250 km, wide area networks wan. Introduction raj jain professor of cis the ohio state university columbus, oh 43210. In this lesson, ill give you a general overview of what lans local area network are. Before discussing lan wan and man, let us know about the network network. A local area network lan is a group of computers and peripheral devices that share a common communications line or wireless link to a server within a distinct.
Its called a local area network since all devices that make up the lan are close to each other. Local area networks, or lans, are the physical networks that. While this local network is on the wane today, it will be explored since it was a recent attempt by the user to address local area network problems in the industrial environment. A home area network han is a network that is deployed and operated within a small boundary, typically a house or small officehome office soho. Local area network designintroduction to local area. Local area networks are generally networks that are limited to a relatively small area, such as a room, building, campus, etc. A printable version of local area network design is available. Lan local area networkradio network wireless lan wlaninstead of cablebased connections. Wireless local area networking for linking a pc reporting system. Topicsuse of networks network structureimplementation of networks. Understanding clientserver communications in a local environment 9th edition westnet learning on. Connecting to a local area network connecting to a local area network lan requires an 8pin, rj45 network cable not included. Data collection and processing, when performed by an individual controller, can burden the processors scan time, consume large amounts of memory, and complicate the control logic pro gram.
Introduction to wans wide area network our own networks are called lans local area network. Once you use connections for external resources, for example, an internet connection we call it a wan wide area network connection. Broadcast networks 2classify interconnected processors by scale. A network consists of 2 or a lot of computers that are coupled so as to share resources such as cds and printers, exchange files, or enable electronic communications. An introduction to local area networks research mit. Local area network design wikibooks, open books for an. The computers on a network are also coupled through cables, telephone lines, radio waves, satellites, or. In february 2000, we introduced into our system several reporting terminals connected by a wireless local area network lan. Clark et al an introduction to local area networks 1501. Bluetooth network is called piconet, and is established in masterslave mode. Centralized data acquisition and distributed control are the most common applications of local area networks. Coverage area dell desktop and notebooks users guide. Perhaps in one building or a few buildings close to each other called a campus. A simple wireless lan is a local network with an access point for wlan adapter network interface cards with antenna, which is attached to the computer or inserted.