All the 802.11 specifications use the Ethernet protocol and Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) for path sharing. The original modulation used in 802.11 was phase-shift keying (PSK). However, other schemes, such as complementary code keying (CCK), are used in some of the newer specifications. The newer modulation methods provide higher data speed and reduced vulnerability to interference.

The 802.11 specifications are summarized in our IEEE 802 Wireless Standards: Fast Reference.

Getting started with 802.11

To explore how 802.11 is used in the enterprise, here are additional resources:

802.11 protocols: Learn more about the different 802.11 wireless protocols and deployment basics in this guide.

Mastering 802.11n: Implementation tips and answers to frequently-asked WLAN questions: Learn how to avoid and troubleshoot common 802.11n implementation issues.

Upgrading to 802.11n: Key considerations: This 802.11n checklist will help you determine where, how, and when to migrate to 802.11n Wi-Fi, and how to maximize benefit and minimize pain.

Understanding 802.11n wireless antennas: 802.11n wireless antennas have been improved to increase network footprint, available bandwidth and resilience to problems that crippled older 802.11a/b/g access points.

Read more about it:
>>	The IEEE lets you freely download each of the 802.11 specifications from their Web site.
>>	SearchNetworking.com offers a "Wireless Learning Guide."
>>	"Inbuilding Wireless LANs," a paper by Raj Jain and Zhengping Zhuo of Ohio State University, provides more information.
>>	Get the latest Dell Coupons at NotebookReview.com.