WIRELESS NETWORKS - A.HARIKA Y5CSO28

INTRODUCTION 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.

BASICS The basic wireless network is organized in two ways 1)BSS network. 2)IBSS network. Security mechanisms

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

CONSTRUCTION SSID The channel that the router uses Your router's security options WEP WPA MAC

TYPES OF WIRELESS NETWORKS Wireless LAN GSM PCS D-AMPS WI-FI Fixed wireless data

STEPS 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

APPLICATIONS 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.

DISADVANTAGES Interference might block the radio signals from passing through. Nearby networks using the same frequencies, also cause interference within the network. Compatibility.