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CellStream, Inc. – Telecom Consulting and Training! |
1-Day Instructor Led Hands On Lab Class |
Course Description:
This course provides an in-depth discussion on the Wi-Fi 802.11n and 802.11ac specifications. This class is ideal for anyone looking for an in-depth understanding of WLANs and how they are evolving to support higher data rates and higher capacity enterprise solutions. 
The purpose of this course is to provide students with a detailed understanding of the IEEE 802.11n High Throughput standard. In addition to explaining the specifics of the 802.11n standard, this course also explains the underlying radio techniques that are deployed to attain the high data rates and the new deployment challenges that these radio techniques introduce, including coexistence and interference with existing infrastructures. Key features of emerging standard 802.11ac very high throughput will be discussed, and how this new technology will coexist with 802.11n.
This course assumes a solid understanding of how Wi-Fi works. Students not familiar with how devices connect and send data over Wi-Fi networks should attend the Wi-Fi 101 Foundation Course.
Course Objectives:
At the end of the course, the student will be able to:
- Describe the enhancements provided by 802.11n over the previous standards
- Define the 802.11n PHY and MAC changes that enable high data rate performance
- Distinguish between the different MIMO techniques
- List the challenges in implementing 802.11n and how to mitigate them
- Discuss how the emerging 802.11 standards further complement and extend the capability of Wi-Fi networks
- Recognize and describe 802.11n-appropriate acronyms and terminology (supplemental glossary provided by instructor)
- Compare and contrast 802.11n with the new 802.11ac very high throughput standard
Audience:
The target audience for this course is anyone in Engineering, Test, Customer Support, Technical Marketing, or even Sales and Marketing that requires either a detailed understanding of the 802.11n high throughput specification and deployment challenges, and seeks to comprehend the changes and implementation challenges of the new 802.11ac very high throughput standard, and how it can be applied to their job function.
Ideal candidates are:
- Operations individuals that will provide 802.11 configuration and support services
- Network Design Engineers that need to understand 802.11n and the emerging 802.11ac specification
- Network Management individuals that are providing element and network management tools
- Technical sales individuals that must be able to correlate features with functionality
- Technical marketing individuals that want more than just a basic understanding of 802.11, and need to understanding the emerging bandwidth and MIMO requirements
- Certification Track individuals that need to expand their knowledge and studies
- Network Administrators
Course Prerequisites:
This course is designed to appeal to anyone needing to deepen their skills and knowledge of 802.11 and the challenges of delivering high data rate services over WLANs. The ideal student will have some experience in networking and operations, and has attended the WiFi 101 Foundation course.
Course Materials:
Students will be provided with a Course Student Guide via the Online School of Network Sciences as well as many course reference materials.
Related Content:
There are a number of related courses we offer that explore the technical aspects of both today’s and tomorrow’s wireless networks.
- For students requiring an understanding to today’s and future mobile networks we offer:
- 4G 101 Foundation, available both as instructor led and self-paced
- 4G 201 Advanced, available both as instructor led and self-paced
- 5G 101 in a day, a 1 day 5G introduction – instructor led, web based delivery only
- 5G 201 in a day, an advanced 5G class – instructor led, web based delivery only
- Understanding 5G Wireless Networks, a 2 day instructor led, web based delivery only class
- Advanced 5G Network Radio and Network Concepts – a 1 day instructor led, web based delivery only class
- For students working on IoT, we have several additional courses that compare and contrast the different technologies being deployed to connect “things” to the Internet, such as:
- Enabling IoT: Wireless Low Power and Lossy Networks
- Enabling IoT: The ZigBee Protocol, available both as instructor led and self-paced
- Enabling IoT: IEEE 802.15.4 Low Rate Wireless Sensor Networks
- Enabling IoT: Wireless Access in Vehicular Environments (WAVE)
- Enabling the IoT: Next Generation 802.11 WLANs
- For students needing a technical understanding of the operation of 802.11 Wi-Fi networks we have:
- Understanding Wi-Fi 802.11 Fundamentals – a 1 day instructor led, web based delivery only class
- Wi-Fi 5 – Very High Throughput (802.11ac) – a 1 day instructor led, web based delivery only class
- Understanding Voice and Video over Wi-Fi – a 1 day instructor led, web based delivery only class
- Hands-on Wi-Fi 6/6E (802.11ax) – a 2 day instructor led, web based delivery only class
- Understanding Wi-Fi Security with WPA2 and WPA3 – a 1 day instructor led, web based delivery only class
- For students looking to learn more in general about Wireshark, check out our Wireshark classes here.
- For students looking to learn more about Wi-Fi/WLAN – check our our WLAN operations courses here.
- For students looking to learn more about IPv6 – check our our IPv6 courses here.
Course Outline:
- How Wi-Fi works
- Review of the 802.11 Foundation course
- Wi-Fi topologies
- Introduction to IEEE 802.11n and 802.11ac
- Applications and services requiring higher data rates
- 802.11n,ac products and impact of the market
- Tri-band radios
- Wi-Fi Alliance timeline for 802.11ac certification
- IEEE 802.11n Physical Layer
- Contrasting 802.11g and n OFDM radios
- 40 MHz channels and subcarrier allocation
- Optimizing the guard interval
- Achieving 600 Mbps
- IEEE 82.11n Medium Access Control (MAC) Layer
- 802.11n MAC layer improvements required to support higher data rates
- Frame aggregation
- Coexistence of 20 and 40 MHz systems
- Mechanisms to protect 802.11n transmissions
- Real-life 802.11n deployment
- 802.11n radio interface
- MIMO configuration options
- Classifying 802.11 frames
- Radio techniques underlying IEEE 802.11n
- Understanding OFDM
- How Spatial Multiplexing (SM) achieves higher data rates
- Comparing and contrasting Spatial Multiplexing (SM) and Space Time Coding (STC)
- Beamforming
- Multi-user MIMO
- Contrasting 802.11n and 802.11a OFDM attributes
- IEEE 802.11ac Very High Throughput
- Comparing and contrasting 802.11n and ac
- Operating frequencies
- Multi-channel solutions
- High levels of modulation
- Explicit beamforming using a sounding protocol
- Improvements to frame aggregation
- Wi-Fi Alliance wave 1 certification
Supplemental Information:
- IEEE 802.11af White Spaces
- TVWS Frequency Bands
- White Spaces Databases
- Channel Bandwidth and Data Rates
- Radio Link Query Protocol (RLQP)
- Interoperability with legacy devices
- 802.11n coexistence with 802.11a,b,g equipment
- Coexistence of 20 MHz and 40 MHz channel operations
- 802.11ac coexistence with 802.11a,n equipment
Course Availability:
Contact us for schedule dates and times.
View the course calendar and browse for our schedule.
Course Description, Content, Outline, and Instructional Design are Copyright ©CellStream, Inc.