- course id
- WIFI-TO
- duration
- 3 day(s)
- Aimed At
-
Anyone who needs to understand the architecture and operation of WiFi networks.
- Prerequisites
-
Those wishing to take this course should have a basic knowledge of 2G/3G wireless technologies.
- Course in a Nutshell
-
This course is aimed specifically at those who work with wireless/cellular radio networks and who also need to understand the operation of WiFi networks, with a particular focus on the interoperability issues. However, with some customization of the course content, it will be of benefit to other audiences as well.
- Customize It!
-
The course can be customized to your particular background and needs at no additional cost. For a more in-depth coverage, it can be expanded to four or five days.
- Learn How To
-
- Course Outline
-
Part 1: Introduction to IEEE 802.11 and Wi-Fi
- Wired vs wireless communications
- Comparison of networks
- Categories of information transmission
- Asynchronous, isochronous, and synchronous requirements
- Voice and data
- Overview of 802.11 and Wi-Fi
- General architecture
- Wi-Fi Alliance
- IEEE 802.11 task groups
- 3GPP standardization
- The need for standardization
- 3GPP structure
Part 2: Wi-Fi Physical (PHY) Layer- Link budget and path loss
- Calculating maximum range
- Multipath
- Doppler and delay spread
- Diversity combining
- Basic modulation methods
- Modulated signal structure
- Amplitude, frequency, and phase shift keying
- Direct sequence spread spectrum (802.11b)
- DSSS methods
- Processing gain
- Complementary code keying (CCK)
- Advanced modulation methods (802.11g/n)
- Quadrature Amplitude Modulation (QAM)
- Orthogonal Frequency Division Multiplexing (OFDM)
- Performance
- Advanced antennas and multiple-input multiple-output (MIMO)
- 802.11n MIMO
- 802.11n operating modes and performance
- Error control
- Error detection and correction
- Automatic repeat request
Part 3: Wi-Fi Medium Access Control (MAC)- Carrier-sense multiple access
- Basic concept and operation
- Avoiding network instability
- Distributed Coordination Function (DCF)
- Channel access and backoff
- Performance
- Point Coordination Function (PCF)
- Channel access and scheduling
- Performance
- Quality-of-Service
- The QoS challenge
- Overview of 802.11e QoS enhancements
- Throughput capabilities
- Frame transmission times
- Throughput analysis
- Management operations
- Connection process
- Addressing and traffic flow
- Roaming
- Layer 2 and Layer 3 roaming
- Overview of 802.11r Fast BSS Transition
- Mesh networking
- Deployment scenarios
- Overview of 802.11s Mesh Networking
Part 4: Wi-Fi Security- Types of security threats
- Disclosure, integrity, denial-of-service
- Overview of 802.11i security
- 802.11i enhancements over WEP
- Access control
- Data security
- 802.11i and IPsec
- 802.1X port based authentication
- Portal / web based authentication
Part 5: Wi-Fi Deployment and Optimization- Key performance indicators (KPI)
- Range
- Data rate and throughput
- Latency
- Security
- Others
- Project planning
- Requirements
- Site survey
- Coverage vs. capacity planning
- Access point (AP) installation
- Network traffic analysis
- Coexistence
- Interference characteristics
- General coexistence strategies
- Wi-Fi coexisting with other Wi-Fi networks
- Wi-Fi coexisting with other wireless systems
- Dynamic frequency selection (DFS) and transmit power control (TPC)
- Infrastructure consideration
- WLAN controllers and switches
- Load balancing and other considerations
Part 6: Future Directions in Wireless Networking- Wi-Fi
- Higher data rates
- Other enhancements
- Seamless roaming
- Roaming between 3GPP and Wi-Fi
- LTE vs Wi-Fi
- Scenarios where Wi-Fi is best
- Scenarios where LTE is best
- Wi-Fi vs WiMAX
- Wrap-up
- Course Recap and Q/A
- Evaluations


