Information on wimax and wireless security specifications, like wpa2, wpa and wep, are also explained. All of these services can be used to provide combined mobile voice access and internet access at remote locations. Wireless local area network wlan is used by just about anyone using a wireless communication device such as a smartphone, laptop, or tablet computer. Wireless local area network, in area with a cell radius up to. These standards are created and maintained by a body referred to as the iee lanman standards committee.
Upcoming standards in wireless local area networks arxiv. It supports a theoretical maximum throughput of 11 mbps over short ranges using the 2. Amendments 1 to 5 published in 2012 and 20 have also been incorporated into this revision. Pdf wifi et sans fils wlan cours et formation gratuit. Intro wireless lan or wireless local area network is a term to refer to a local area network that does not need cables to connect the different devices. During the design phase, we will determine access point locations based on coverage and device counts that will allow for optimum speed and access. The good news is that adherence to these standards gives unparalleled interoperability. However, until a recent time, these wlans have been mainly used. All wlan standards depend on access to radio spectrum. The revised wlan standards, properly deployed, will make authenticated wireless networking a safe computing environment. It standardized support for multipleinput multipleoutput, frame aggregation, and security improvements, among other features, and can be used in the 2.
Nextgeneration wireless lan technology this white paper explains ieee 802. Ess configurations consist of multiple bss cells that can be linked by either wired or wireless backbones. Technical corrections and clarifications to ieee std 802. Multiple antennas, or mimo multipleinput, multipleoutput, is the key innovation used to obtain these benefits.
This paper describes the current state of access control with existing 802. The next generation of wlan standards could be based on mimo technology to achieve high data rate and improved range. The wifi alliance has also retroactively labelled the technology for the standard as wifi 4. Apr 22, 2020 in 2002 and 2003, wlan products supporting a newer standard called 802. Wireless lan standards at the time this book was published, the ieee had rati. November 2011, in enhanced wireless, wlan, by ewc 0. Wlan is mostly defined by the ieee 802 family of standards. Zyxels 11n wireless products as the list below comply with the latest and final ieee 802.
According to cisco report in 2000 wireless localarea network wlan does exactly what the name implies. This is the standard protocol used all over the world. Wlan standards news, help and research searchnetworking. This section lists the basic details of each wlan standard, along with information about a couple of other standards bodies. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. It is a shared technology and offers no guarantees for consistent bandwidth or performance. Obviously, from the definition the wlan is the same as lan but without wires. The ieee standards board has officially ratified the ieee 802.
This document has been prepared to assist ieee 802. These standards address the need for an organized approach in deploying wireless technologies on the ucsf enterprise network. This tutorial gives you a basic understanding on wifi. Nowadays, almost every laptop or smart phone has a builtin wlan card. Wifi is primarily a local area networking lan technology designed to provide inbuilding broadband coverage. The different types of wlan standards, including ieee 802. They all share the same bandwidth by following protocols set by the ieee 802.
True 3g systems such as evdo, wcdma including hspa provide combined circuit switched and packet switched data and voice services from the outset, usually at far better data rates than 2g networks with their extensions. Wlan access control and authentication interlink networks. Wireless lan medium access control mac and physical layer phy specifications amendment 4. A bss is made of stationary or moving wireless stations and a central base station called as the.
The wireless networking equipment available supports varying levels of industry communication standards. In 2002 and 2003, wlan products supporting a newer standard called 802. For each measurement, an instrument list, test setups, test method, comments, typical results and implementation hints are included. Every day, more and more things are connecting to the internet. Learn vocabulary, terms, and more with flashcards, games, and other study tools.
It supports much higher speeds, up to 54 mbps, but over the 5ghz band. Standards organizations, position, context, and influence. Adherence to these standards will allow ucsf schools, departments and individuals including students in residence halls connected to the ucsf network to deploy wireless networks without compromising the integrity of the campus network. Intro wireless lan or wireless local area network is a term to refer to a local area network that does not need cables to connect the different. This amendment defines modifications to both the ieee 802. The pdf of this standard is available at no cost compliments of the. Before you start proceeding with this tutorial, we are making an assumption that you are. An extended service set ess is a set of two or more bsss forming a single subnetwork. If you have ever wondered what the difference is between wifi 802. However, until a recent time, these wlans have been mainly used for internet browsing, email, and other light load applications.
Ratification is expected in december 2009 and publication in early 2010. On the other hand, it also requires that the ieee committees be innovative in areas such as security, which is an area where work is still being done. Wlan service is designed to serve agency staff and authorized agency visitors and guests. Ieee standards activities department 445 hoes lane piscataway, nj 08854, usa. It is offered as a basis for discussion and is not binding on the contributing individuals or organizations. This post includes wireless communication notes on ieee 802. It is designed to provide an overview of the technology, describe new techniques used to achieve greater speed and range, and identify applications, products, and environments that will benefit from the technology. Draft standards are available from a number of sources. Other entities seeking permission to reproduce this document, in whole or in part, must also obtain permission from the ieee standards activities department.
1276 573 493 1067 804 1008 778 330 821 1385 766 1154 90 1206 1006 573 361 950 182 1289 1106 499 1338 306 1471 461 954 765 348 33 1104 468