Introduction:

Driven by the use of unlicensed spectrum, WiFi has become as pervasive a technology at home as it is at work. WiFi-enabled laptops, PDAs, and other devices continue to proliferate as the prices of access points continue to drop. Whether you are in telecommunications or information technology, WiFI will continue to be an important technology to study for some time to come. In this course, you will learn about the market landscape of WiFi, the RF principles key to WiFi operation, how WiFi networks work, and the applications of WiFi. We will take an in-depth look at the various standards associated with this technology including 802.11a, 802.11b, 802.11g, and 802.11n. You will also study how WiFi networks are designed, deployed, and optimized. In short, you will learn everything necessary to get the best performance and coverage for your WiFi application.

Audience:

Network and RF planners and designers, hardware and software engineers, equipment and application developers, equipment installers, IT network administrators, managers and executives concerned with strategy and investments, marketers and sales people, and those engaged in designing new or enhanced data applications and services for the subscribers.

Prerequisites:

You should have some familiarity with communications engineering. If you have an understanding of the architecture of a mobile communications network and the limitations imposed by its air interface, that will be helpful but it’s not required.

Customize it:

This 2-3-day WIFI course will be customized to your needs and specifications. Enowireless will assist you in identifying those needs and specifications. A word to the wise, there are many vendors of wireless training. They will typically have a broad and general course, one size fits all, already developed and just put your organization’s name on the title slide. This minimizes their effort and time investment. At Enowireless, every course is made to your exact and exacting specifications. We help you ensure what you are getting is what you really need even if at the beginning you weren’t too sure of what that was. We fit the class to your needs. We never fit you into our “standard”, one size fits all, class.

Objectives:

Learn how to Summarize the manufacturers, market, and applications of Wi-Fi Explain the fundamental principles of RF communication List the RF considerations for planning access point coverage Describe the various standards associated with Wi-Fi Describe the components and operation of a WiFi network Differentiate radio related issues associated with operating in different bands Explain the fundamentals of CSMA/CA in Wi-Fi networks Discuss re-association and mobility management techniques of Wi-Fi Design, deploy, and optimize a Wi-Fi network Create a network topology and all elements required to support the given traffic requirements and service types Develop representative GANTT charts for WiFi deployment Discuss WiFi’s relationship with technologies such as WiMAX, MIMO, and IPTV

Course Outline

WiFi: The Market Landscape Market for Wi-Fi Manufacturers Uses of Wi-Fi Installed base and projections Chipset manufacturers Device manufacturers Wi-Fi Basics The 802.11 standard History of 802.11 evolution Frequency hopping Direct Sequence Spread Spectrum (DSSS) Carrier Sense Multiple Access (CSMA/CA) with collision avoidance Modulation techniques Frequency bands Interference considerations Frequency hopping RF Basics The electromagnetic spectrum RF propagation and fading RF modulation techniques Reflection, refraction, and diffraction Basics of digital RF communication Free space loss Technology Overview: 802.11a Operational frequencies Data rates Range OFDM advantages Interference Penetration BPSK, QPSK, 16-QAM IFFT Line of sight Coding rate Compatibility Technology Overview: 802.11b Operational frequencies Data rates Range Point to multipoint DSS Complimentary code keying External antennas & outdoor ranges ERP Adaptive rate selection Compatibility Technology Overview: 802.11g Operational frequencies Data rates Range Compatibility OFDM Technology Overview: 802.11n Current standards update Goals and objectives of the specification Estimated timeline towards release RF System Design Indoor design considerations Tools available for design Design considerations Propagation losses Link budget System degradation Limitations of bandwidth Receiver sensitivity RF performance and Key Performance Indicators (KPIs) Optimizing the system performance RF system management Sample link budget calculations RF System Deployment Project planning for RF deployments Process of RF deployments Successful and unsuccessful RF deployments Design engineering Traffic engineering RF optimization and performance testing Recap of Some Key Concepts Scanning and joining Authentication and de-authentication Associating and disassociating Radio related issues of operation in different bands Basics of CSMA/CA Power saving mode Re-association and mobility management techniques Wi-Fi in Operation Original MAC layer BSS AP and STAs Synchronization RTS/CTS Network allocation vector DCF basic access DIFS & back off algorithm SIFS MSDU PCF for controlled, un-contended access QoS limitations with 802.11 MAC Exercises Develop a Wi-Fi network design Create a network topology and all elements required to support the given traffic requirements and service types Investigate the RF considerations for planning access point coverage Develop Gantt charts for a representative WiFi deployment Future of Wi-Fi Wi-Fi standards evolution Wi-Fi and IPTV Wi-Fi with MIMO Relation to WiMAX WiMAX overview WiMAX applications WiMAX deployment scenarios Wrap-Up: Course Recap, Q/A, and Evaluations