Advanced Wi-Fi Training: Technology, Security, Deployment; Coexistence with LTE and 5G

Advanced WiFi Training Part 1: IEEE 802.11 Overview

• WiFi: Market Landscape
• Short-Range Wireless Characteristics
  • Wired vs wireless
    • Comparison of networks
    • Comparison of security challenges
    • Short-range wireless systems
  • Categories of Information Transmission
    • Asynchronous, isochronous, and synchronous requirements
    • Voice and data
  • IEEE 802.11 Network Architecture
    • General IEEE 802.11 architecture
    • Basic, extended, and independent service sets
    • Examples of implementations

Advanced WiFi Training Part 2: IEEE 802.11 Physical Link

• Radio Frequency (RF) Basics
  • The electromagnetic spectrum
  • RF propagation and fading
  • RF modulation techniques
  • Reflection, refraction, and diffraction
  • Basics of digital RF communication
  • Free space loss
• Link Budget and Path Loss
  • Review of decibels
  • Calculating maximum range
  • Multipath characteristics and mitigation
• Multipath
  • Doppler and delay spread
  • Diversity combining
• Basic Modulation Techniques
  • Amplitude, frequency, and phase shift keying (ASK, FSK, PSK)
  • Complementary Code Keying (CCK)
  • Quadrature Amplitude Modulation (QAM)
• OFDM
  • What is OFDM
  • OFDM Advantages and Challenges
  • OFDM parameters
• Error Control
  • Error characteristics
  • Cyclic Redundancy Check(CRC)
  • Convolutional coding
  • Automatic Repeat ReQuest (ARQ)

Advanced WiFi Training Part 3: IEEE 802.11 MAC

• MAC Methods
  • Carrier-sense multiple access
    • Basic concept and operation
    • Avoiding network instability
    • CSMA and Denial-of-Service (DoS) attacks
  • Distributed Coordination Function (DCF) operation
    • Channel access and backoff
    • DCF and Man-in-the-Middle (MITM) attacks
  • Point Coordination Function (PCF) operation
    • Channel access and scheduling
  • Operation in an independent basic service set (ad-hoc)
•  IEEE 802.11e Quality-of-Service (QoS) operation

Advanced WiFi Training Part 4: IEEE 802.11ah

• Introduction to IEEE 802.11ah
  • IEEE 802.11ah use cases
  • Issues for sub-one-gigahertz (900MHz) band
  • IEEE 802.11ah requirements
    • Functional requirements
    • System performance
    • Supporting band
    • Coverage and data rate
    • Coexistence
    • Enhanced power saving
  • Internet of Things (IoT) and Machine to Machine (M2M) communications
  • One-hop network topologies
  • Short and infrequent data transmissions
  • Dense AP deployment number of stations
    • Traffic Indication Map (TIM) stations
    • Non-TIM stations
• IEEE 802.11ah PHY and MAC
  • Extended range Wi-Fi by IEEE 802.11ah
  • IEEE 802.11ah global ISM spectrum allocation
  • IEEE 802.11ah bandwidths
  • Downlink Multi-User MIMO-OFDM (DL MU-MIMO)
  • IEEE 802.11ah PHY optimization
    • Extended range
    • Power efficiency
    • Scalable operation
  • IEEE 802.11ah link-budget
    • Transmission range and data rates

Advanced WiFi Training Part 5: Wi-Fi Security

• Wired Equivalent Privacy (WEP)
  • Shared key and public key cryptography
  • Cryptanalysis attack methods
  • WEP encryption process and weaknesses
  • WEP data integrity process and weaknesses
  • WEP access control process and weaknesses
  • Denial-of-service (DoS) attack methods
• IEEE 802.11i Access Control and Key Management
  • Wired Equivalent Privacy (WEP) weaknesses
    • Weaknesses: Authentication, data confidentiality, data integrity
  • Introduction to Robust Security Network (RSN)
    • RSN security layers
    • Methods of authentication
    • IEEE 802.11i operational phases
  • IEEE 802.1X Port-Based Network Access Control
    • IEEE 802.1X authentication and key distribution
    • Digital certificate
    • Challenge-response using a RADIUS server
  • Extensible Authentication Protocol (EAP)
    • EAP request/response
    • EAP over LAN (EAPOL)
    • Key derivation and exchange
  • Transport Layer Security (TLS)
    • TLS handshake exchange
    • TLS and IEEE 802.11i
    • TLS over EAP
• Advanced WiFi IEEE 802.11i Encryption
  • Temporal Key Integrity Protocol (TKIP)
    • TKIP implementation
    • Encapsulation and de-capsulation processes
    • TKIP message integrity
    • TKIP attack countermeasures
  • Advanced Encryption Standard (AES)
    • Requirements for WEP replacement
    • AES operation
    • AES modes and algorithms
    • 802.11i counter/cipher block chaining with message authentication code (CCM) protocol
• Advanced WiFi Wi-Fi Protected Access (WPA)
  • IEEE 802.11i and Wi-Fi Protected Access (WPA)
    • Comparison of 802.11i and WPA
  • Versions of WPA
    • WPA Personal vs WPA Enterprise
    • WPA vs WPA2
  • WPA and RSN key hierarchy
    • Pairwise and group keys
    • Key hierarchy
    • Key derivation
  • WPA implementation requirements
    • Access points
    • Network adaptors
    • Client software
  • WPA certification

Advanced WiFi Training Part 6: Wi-Fi Deployment and Optimization

• Operating Frequencies and Signal Spectrum
  • Frequency hopping
• Key Performance Indicators (KPI)
  • Range
  • Data rate and throughput
  • Latency
  • Security
  • Others
• Project Planning
  • Requirements
  • Site Survey
  • Coverage vs. Capacity
  • AP Installation
  • Network Traffic Analysis

Advanced WiFi Training Part 7: WiFi Coexistence with LTE, and 5G

• LTE vs Wi-Fi
  • Scenarios where Wi-Fi is best
  • Scenarios where LTE is best
• LTE-WiFi Aggregation (LWA)
• WiFi vs. Unlicensed LTE (LAA/eLAA/MulteFire)
  • Listen Before Talk (LBT)
• WiFi and Spectrum Sharing
• WiFi in 5G

Advanced WiFi Training Wrap-up: Recap and Discussion

DCN PnTM-f