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

Compare and contrast between block and stream ciphers, Problem 1 Solve ...

Problem 1 Solve the following Caesar cipher by showing your working: EM KIUM EM AIE EM KWVYCMZML Problem 2 Compare and contrast between block and stream ciphers, listin

Cyber security, How to pretect my computer from attacking

How to pretect my computer from attacking

Find the services implemented on your computer, Question: (a) Which typ...

Question: (a) Which type of attacker represents the most likely and most damaging risk to your network? (b) What is the basic reason that social engineering attacks succeed?

Transmision imparment, What are Transmission Impairments? Explain the follo...

What are Transmission Impairments? Explain the following concepts with respect to Transmission Impairments a) Attenuation b) Delay Distortion c) Noise ion #Minimum 100 words ac

Typical network management system, Problem 1: List measurable entities ...

Problem 1: List measurable entities on which the quality of service in a data communication network depends Problem 2: Show the features of a typical Network Management

Math logic, explaain it?

explaain it?

Base lining-risk management, Base lining • Organizations do not have ...

Base lining • Organizations do not have any contact to each other • No two organizations are identical to each other • The best practices are a moving target • K

Categories of controls-information security, Categories of Controls Cont...

Categories of Controls Controlling risk through mitigation, avoidance or transference is accomplished by implementing controls. There are 4 effective approaches to select the co

Produce a pcap file from a wireshark capture, Question requires you to prod...

Question requires you to produce a pcap file from a Wireshark capture. In addition, you must include a screen capture of Wireshark and some specific information regarding the fram

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

on LAN,where are IP datagrams transported?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages