What is IEEE 802.11b?

Are you preparing for IT certification? With practice questions, study notes, interactive quizzes, tips and technical articles, uCertify PrepKits ensure that you get a solid grasp of core technical concepts to ace your certification exam in first attempt.

What is IEEE 802.11b?

Rating:

The IEEE 802.11b standard applies to wireless LAN networks that use radio waves as the transmission medium. These networks each have a separate media access control mechanism, known as Carrier Sense Multiple Access with Collision Avoidance (CSMS/CA), that works like the CSMA/CD mechanism used by the Ethernet. The difference is that in this protocol, when a computer sends its signals, the receiving computer performs a cyclical redundancy check and sends an acknowledgement message to the sending computer if no error is detected.

The IEEE 802.11b networks run at the transmission speed of 11 Mbps with a fallback to 5.5, 2, and 1 Mbps in the 2.4 GHz bandwidth. The radio transmission medium used by these networks is called Direct Sequence Spread Spectrum (DSSS).


Rating:



Other articles

Click here to Article home

MCSE: MCSA, MCTS, MCITP    JAVA Certification: SCJP, SCWCD Cisco Certification: CCNA, CCENT, CompTIA Certification: A+, A+ Essential, A+ IT Technician, Network+, Security+, Linux+, Server+, I-Net+
Oracle Certification: OCP 9i, OCP 10g, OCA 9i, OCA 10g CIW foundation    EC-212-32    CISSP    Photoshop ACE    Adobe Flash ACE
© 2008 uCertify.com. All rights reserved. All trademarks are the property of their respective owners.
 
HACKER SAFE certified sites prevent over 99.9% of hacker crime.