Problems

(Take screenshots of your result and submit with your answer and download vistumbler @ https://www.vistumbler.net/ instead of netstumbler), 11.7

11.2 For IEEE 802.11n, determine the data rate for 16 QAM using a 2/3 coding rate with 2 parallel data streams.

a. For a 20 MHz channel.

b. For a 40 MHz channel.

11.3 For IEEE 802.11ac, determine the data rate over a 160 MHz channel for 64 QAM using a 1/2 coding rate with 8 parallel data streams.

11.4 There are many free tools and applications available for helping decipher wireless networks. One of the most popular is Netstumbler. Obtain the software at www

.netstumbler.com and follow the links for downloads. The site has a list of supported

wireless cards. Using the Netstumbler software, determine the following:

a. How many access points in your network have the same SSID?

b. What is your signal strength to your access point?c. How many other wireless networks and access points can you find?

List and briefly define the architecture components of an 802.11 Wireless LAN.

Briefly describe how a device joins a wireless LAN network?

What technique does a wireless LAN use to gain channel access and prevent interference in the shared spectrum? Briefly describe how it works.