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

What is authentication? explain authentication protocols, What is Authentic...

What is Authentication/confirmation? How it is different from the Authorization/approval? Explain in brief different authentication protocols along with their merits and demerit

Risk control strategies-, Risk Control Strategies Once the ranked vulner...

Risk Control Strategies Once the ranked vulnerability risk worksheet has created, they should choose one of following 4 strategies to control each risk: •Apply safeguards which

E-commerce, briefly expslain type of e-commerce

briefly expslain type of e-commerce

Information security policy practices and standards, INFORMATION SECURITY P...

INFORMATION SECURITY POLICY PRACTICES AND STANDARDS Management from all the communities of interest should consider policies as basis for all information security efforts. Polic

ITC 571 Emerging Technologies and Innovation Assignment, Ask quProject brie...

Ask quProject brief template The project brief is a document upon which the full Project Proposal and Plan will be based. About me: Who are you? What do you do? What is your Exper

Discuss the influence the commercial operations, Question: A regional p...

Question: A regional police force has the following corporate objectives: ? to reduce crime and disorder; ? to promote community safety; ? to contribute to delivering just

Write a note on digital signature, Question 1 Explain the types of threats...

Question 1 Explain the types of threats (Attacks) Question 2 What are the Characteristics of Good Encryption Technique? Question 3 Write a note on Digital Signatur

Secure clustering in WSNs, i have an idea of clustering in wsns . where eac...

i have an idea of clustering in wsns . where each and every sensor node use the reputation scheme and while clustering provide help against the selfishness atatck of the sensor nod

Principles of information security, The key concepts and frameworks covered...

The key concepts and frameworks covered in modules 1-4 are particularly relevant for this assignment. Assignment 2 relates to the specific course learning objectives 1, 2 and 3:

Determine the functions of security components, You are designing a Demilit...

You are designing a Demilitarized zone for a large corporation. Using design best practice, and the information that you have learned so far, propose a design that will provide the

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages