WIRELESS NETWORKSWIRELESS NETWORKS

-A.HARIKA

Y5CSO28

INTRODUCTIONINTRODUCTION

It refer to a telecommunication networks whose interconnections between nodes is implemented without the use of wires.

They are generally implemented with some type of remote information transmission system that uses electro magnetic waves for carrier.

BASICSBASICS

The basic wireless network is organized in two ways

1)BSS network. 2)IBSS network.

Security mechanisms

INFRASTRUCTURE MODEINFRASTRUCTURE MODE

ifconfig command scans the neighboring stations.

The flags included in the output depending on the capabilities of AP’s are

-E: Extended Service Set (ESS).

-I: IBSS/ad-hoc network

-P: Privacy

-S: Short Preamble

-s: Short slot time

BASIC SETINGSBASIC SETINGS

IP address is needed, if there's more than one wireless network, we need to specify the ssidWPA (Wi-Fi Protected Access) is basically a temporary key integrity protocol, which uses the 802.11 standards.

CONSTRUCTIONCONSTRUCTION

SSID

The channel that the router uses

Your router's security options

WEP

WPA

MAC

TYPES OF WIRELESS NETWORKSTYPES OF WIRELESS NETWORKS

Wireless LANGSMPCSD-AMPSWI-FIFixed wireless data

STEPS TO IMPROVE NETWORKSTEPS TO IMPROVE NETWORK

Position your wireless router in a central location

Replace your router's antenna

Replace your computer's wireless network adapter

Add a wireless repeater

Change your wireless channel

Reduce wireless interference

APPLICATIONSAPPLICATIONS

Information could be sent overseas.

Cellular phones.

Police department utilize wireless networks to communicate important information quickly

It is an inexpensive and rapid way to be connected to the Internet.

DISADVANTAGESDISADVANTAGES

Interference might block the radio signals from passing through.

Nearby networks using the same frequencies, also cause interference within the network.

Compatibility.