By Matthew Gast
It is a nice e-book for wireless procedure engineers to appreciate 802.11 a\b\g PHY and MAC. The e-book not just talks approximately theoretical stuff but additionally supplies sensible elements of wireless networking.
Read or Download 802.11 Wireless Networks: The Definitive Guide (O'Reilly Networking) PDF
Best certification books
CCNA ICND2 legitimate examination Certification consultant moment version grasp ICND2 640-816 and CCNA 640-802 examination themes with the legitimate examine consultant check your wisdom with chapter-opening quizzes evaluation key techniques with examination education projects perform with countless numbers of examination questions about the CD-ROM Wendell Odom, CCIE® No.
CCNP speedy Reference Sheets package deal (Digital brief minimize) Brent Stewart, Denise Donohue, Jay Swan ISBN: 1-58705-327-6 As a last examination guidance instrument, the 4 CCNP quickly Reference Sheets integrated during this value-priced package supply a concise assessment of all pursuits on all 4 of the recent CCNP checks (BSCI 642-901, BCMSN 642-812, ISCW 642-825, and ONT 642-845).
Arrange for the CCNP 642-801 BSCI examination with the one Cisco structures licensed self-study instruction ebook. grasp complex routing suggestions and practicesPrepare for the hot examination with the 200-plus query trying out engine on CD-ROM that incorporates simulation-based questionsLearn CCNP, CCDP, and CCIP routing themes with confirmed studying instruments from the examination Certification consultant seriesWith up to date know-how and checking out content material, CCNP BSCI examination Certification advisor (CCNP Self-Study) presents unprecedented instructional studying and examination coaching on complex routing innovations and practices.
- CCNP Self-Study: CCNP BCMSN Exam Certification Guide
- Network+ Exam Cram 2 (Exam Cram N10-002)
- CCNP Routing and Switching TSHOOT 300-135 Official Cert Guide
- Networking explained
- Documentum 6.5 Content Management Foundations
Extra resources for 802.11 Wireless Networks: The Definitive Guide (O'Reilly Networking)
Once a frame has been accepted by an access point, it uses the distribution service to deliver the frame to its destination. Any communication that uses an access point travels through the distribution service, including communications between two mobile stations associated with the same access point. 11 network. 11, except in terms of the services it must offer. Association Delivery of frames to mobile stations is made possible because mobile stations register, or associate, with access points.
Figure 3-20. 2 Deferred response Instead of an immediate response, access points can also respond with a simple acknowledgment. This is called a deferred response because the access point acknowledges the request for the buffered frame but does not act on it immediately. A station requesting a frame with a PS-Poll must stay awake until it is delivered. Under contention-based service, however, the access point can deliver a frame at any point. A station cannot return to a low-power mode until it receives a Beacon frame in which its bit in the traffic indication map (TIM) is clear.
Fragmentation is controlled by the fragmentation threshold parameter in the MAC. Most network card drivers allow you to configure this parameter. Any frames larger than the fragmentation threshold are fragmented in an implementation-dependent way. Network administrators can change the fragmentation threshold to tune network behavior. Higher fragmentation thresholds mean that frames are delivered with less overhead, but the cost to a lost or damaged frame is much higher because more data must be discarded and retransmitted.
802.11 Wireless Networks: The Definitive Guide (O'Reilly Networking) by Matthew Gast