802.11 wireless lans and csma/ca, Computer Network Security

Assignment Help:

802.11 WIRELESS LANs AND CSMA/CA:

IEEE 802.11 is standard wireless LAN that needs radio signals at 2.4GHz. Its speed is 11Mbps. The older computers use radio signals at data rate of 2Mbps and 900MHz. Bluetooth specifies a wireless LAN for short places. It needs shared medium and radio signals instead of coaxial cable.

LIMITED CONNECTIVITY WITH WIRELESS:

In contrast with wired LANs, not all methods can be able to reach each other.Because:

It has low signal power.
In wireless LANs the propagation is stopped by walls etc.
It can't relay on CD to avoid interference because not all participants can hear.

This is given in the figure below:

1546_802.11 WIRELESS LANs AND CSMA.png

Related Discussions:- 802.11 wireless lans and csma/ca

Routers, Routers They transfer packets among multiple interconnected n...

Routers They transfer packets among multiple interconnected network machines (i.e. LANs of different kind). They perform in the data link, physical and network layers. They ha

Packet filtering firewall-stateless packet filtering, Stateless Packet Filt...

Stateless Packet Filtering Stateless or static packet filtering is the most straightforward kind of packet filtering that allows or disallows data transfer based on the addres

Cyclic redundancy check (crc), CYCLIC REDUNDANCY CHECK (CRC) To activa...

CYCLIC REDUNDANCY CHECK (CRC) To activate a network system to check move error without increasing the amount of information in every packet another most successful method is m

Address resolution protocol (arp), ADDRESS RESOLUTION PROTOCOL (ARP) T...

ADDRESS RESOLUTION PROTOCOL (ARP) TCP/IP can use any of the three address resolution functions relaying on the addressing procedure used by the underlying hardware. To guarant

Hypothetical reliable data transfer protocol, Hypothetical reliable data tr...

Hypothetical reliable data transfer protocol: A jumping window based Go-back-N ARQ protocol for file transfer using UDP as the transport protocol: In this protocol, a window o

Ip datagrams, on LAN,where are IP datagrams transported?

on LAN,where are IP datagrams transported?

Fuckkkkk, Ask question #Minimum.. 100 words accepted#

Ask question #Minimum.. 100 words accepted#

AES, define .

define .

Wireless local area network, a) Wireless local area network (WLAN) technol...

a) Wireless local area network (WLAN) technologies constitute a fast-growing market introducing the flexibility of wireless access into office, home, or production environments. G

How Ethical are Major Internet Companies?, Ask question #MHow Ethical are M...

Ask question #MHow Ethical are Major Internet Companies?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages