CellStream, Inc. - Telecom Consulting and Training!
1-Day Instructor Led Hands On Lab Class
Wi-Fi has evolved from connecting desktop computers, to being the dominant mechanism for connecting laptop computer, tablets, and smartphones to the Internet. According to ABI Research, “Wi-Fi will see its most significant growth in IoT verticals, such as wearables, automotive, the smart home, and other nascent IoT verticals”. ABI Research forecasts that by 2021, Wi-Fi will be in 47% of all devices.
The popularity of wireless connectivity means that in typical Wi-Fi environments there may be tens or hundreds of devices competing for the same radio resources. Although 802.11 defines a mechanism for sharing radio resources, its efficiency drops of as the number of connected and active devices increases. Previous 802.11 amendments, such as 802.11a,g,n,ac primarily focused on improving the raw data rate over-the-air. These high data rates are only achievable in near optimum RF conditions.
The 802.11ax amendment will enable at least a 4-fold improvement in a throughput for the same power consumption in dense environments. 802.11ax significant improvements in the spectral efficiency, power consumption, and mechanisms of handling multiple devices competing for RF resources.
The Wi-Fi Alliance are calling 802.11ax-based products Wi-Fi 6, the next generation of Wi-Fi connectivity. Wi-Fi 6 products changes the focus away from higher data rates for a single device, to improving the overall user experience in= dense network environments where there are many other devices competing for the radio resources. Wi-Fi 6 products will improve capacity, coverage, and performance of Wi-Fi networks, especially in dense environments such as stadiums and other public venues. By significantly reducing battery consumption in Wi-Fi 6 devices also satisfy the requirements in the IoT market.
This course will take the learner through the key technologies that underpin the 802.11ax High Efficiency WLAN amendment and emerging Wi-Fi 6 products.
At the end of the course, the student will be able to:
- Understand the challenges of operating in a dense environment and how 802.11ax overcomes those challenges
- List the enhancements being defined by the IEEE 802.11ax working group to support dense deployments, such as airports, stadiums, and shopping malls
- Develop their knowledge and skills on 802.11ax High Efficiency WLANs
- Define the changes being made to Wi-Fi operations to support the connectivity of low power, low data, and intermittently connected IoT devices
- Discuss the technologies and mechanisms being used to deliver a 4X improvement to the average throughput per station
- Become informed as to why 802.11ax is important to our network future and how they can better manage that importance in their job function
The target audience for this course is anyone in Engineering, Test, Customer Support, Technical Marketing, or even Sales and Marketing. It is ideal for students that need to understand the evolution of Wi-Fi networks, and are seeking to comprehend the implications of the 802.11ax amendments 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 next generation wireless networks
- Network management individuals that are providing element and wireless network 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 understand the emerging wireless technologies
- Certification track individuals that need to expand their knowledge and studies
- Network administrators that need to prepare for future wireless network deployments
- Business managers and project leads that need to understand the direction of critical technologies
This course is designed to appeal to anyone needing to deepen their skills and knowledge of 802.11 and the challenges of delivering dense network deployments and IoT network connectivity. The ideal student will have some experience with today’s Wi-Fi networks and attended both the Wi-Fi 101 Foundation and Wi-Fi 201 Advanced courses.
Students will be provided with a Course Student Guide via the
There are several related courses 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:
- 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 fundamental understanding of the operation of 802.11 Wi-Fi networks we have:
- For students looking to troubleshoot Wi-Fi networks, we offer an Explore Packet Analysis with Wireshark (Wireless Edition) course that shows students how to capture Wi-Fi packets over-the-air and how to analyze your captured packets.
- Establishing the Groundwork
- Key Wi-Fi performance issues
- 802.11ax project scope
- Techniques to improve spectral and power efficiency
- Specification and certification timeline
- Optimizing RF Resource Allocation
- Orthogonal Frequency Division Multiple Access (OFDMA)
- Variable subcarrier spacing to support different services
- Flexible Resource Units (RU) to support a range of device types
- Downlink and Uplink Resource allocation
- Optimizing Throughput: Part I
- Variable Guard Intervals (GI) to support different RF environments
- Higher level of modulation and coding to optimize data rates
- Mandatory BCC and LDPC coders
- Optimizing Throughput: Part II
- Sound procedure to support MU-MIMO
- Implementing DL-MU-MIMO
- Implementing UL-MU-MIMO
- Changes to support deployment in dense environments
- Optimizing Channel Access
- 20 MHz mode of operation to support IoT devices
- Adaptive Clear Channel Assessment (CCA) and its impact on spectral efficiency
- Protecting UL and DL MU transmission
- Conserving power with Target Wake Time (TWT)
- Course Wrap Up