WLANS for Voice and Data

Wireless LANs for Voice and Data

Wireless LAN technology is expanding rapidly in the commercial sector with the introduction of products that will allow enterprise customers to build a secure, reliable wireless infrastructure. This program provides a comprehensive overview of the products, technologies, and design techniques that are used in enterprise wireless LANs. The full range of wireless LAN applicatifinneran2ons will be covered along with practical descriptions of capacities, access protocols, radio issues, design and management tools. This program will provide a solid foundation in radio and a detailed understanding of the products and technologies that will are used to build and maintain WLAN voice and data networks.

Who Should Attend

Communications analysts, network managers, and MIS professionals who will be involved with wireless LAN deployments and need a detailed overview of the technology, concepts, terminology, and practices.

What You Will Learn

  • Understand the basic principles of radio transmission, the various sources of signal interference, and rank various building materials by the degree of the impairment they introduce.
  • Review the advantage of digital radio techniques like Direct Sequence Spread Spectrum, Orthogonal Frequency Division Multiplexing, and Multiple Input-Multiple Output (MIMO) antennas used in 802.11 wireless LANs.
  • Identify at the challenges involved in using unlicensed radio bands, the emerging 80211n and Pre-n radio links, and the impact they have on the network planning.
  • Describe the Media Access Control protocol developed for 802.11 wireless LANs, the various message types and control exchanges, and how that effects network capacity and performance.
  • Understand the basic process for laying out a wireless LAN, the types of design tools that are available, and the overall design philosophies.
  • Describe the development of wireless LAN switches, the general capabilities they provide, and the major categories of products.
  • Review the major security concerns introduced by wireless LANs, the shortcomings of the original WEP technique, and the improvements brought about with WPA, the 802.11i and 802.1x protocols.
  • Introduce the idea of voice over WLANs, handset issues, the QoS capabilities of 802.11e/Wi-Fi Multimedia (WMM), and the overall impact on network capacity.
  • Describe the range of strategies for Fixed-Mobile Convergence, and the techniques that can be used to integrate WLAN and cellular networks.
  • Step-by-step process of designing a WLAN, tuning the installation, and a review of the monitoring and network management systems that will be required.
  • Look at the WiMAX or IEEE 802.16 technology for broadband wireless access networks, the types of applications it will serve, and how it compares to wireless LANs and Wi-Fi Mesh Networks.
  • Introduce some of the other developing technologies in the wireless arena including Ultra-Wideband, software defined radio, RFID, and the smart antenna systems.

Course Details

  • LANs Without Wires
    • Development and Application of Wireless LANs
      • IEEE 802.11 Standards
      • Wi-Fi Alliance
    • Licensed and Unlicensed (ISM, U-NII) Radio Bands
    • WLAN Applications
      • Office Based Networks
      • Vertical Markets: Materials Handling, Healthcare, Universities
      • Public Hot Spots
      • Home Networking
      • Point-to-Point Systems
      • City-wide Mesh Networks
    • Wireless Impairments:
      • Fading
      • Multipath
      • Co-Channel Interference
      • Material Obstructions
      • Outdoor Impairments
    • Health Concerns Regarding RF Exposure
       
  • Digital Radio Technologies
    • General Capacity Limits: Bandwidth, Noise, and Shannon’s Law
    • Radio Spectrum Utilization:
      • Space Division
      • Frequency Division
      • Time Division
    • Radio Modulation:
      • Analog: AM/FM
      • Digital Radio Concepts:
        • Frequency Modulation: FSK, GFSK
        • Amplitude Modulation: QAM, 16-QAM, 64-QAM, etc.
        • Phase Modulation: BPSK, QPSK
    • Spread Spectrum Technologies
      • General Advantages
      • Frequency Hopping Spread Spectrum (FHSS)
      • Direct Sequence Spread Spectrum (DSSS)
      • Orthogonal Frequency Division Multiplexing (OFDM)
    • Forward Error Correction (FEC)
    • Duplex Transmission: FDD, TDD
       
  • Wireless LAN Components
    • WLAN NICs/Drivers
    • Access Points
      • Commercial
      •  Residential
      •  Mesh
    • Antenna Systems
      • Antenna Gain
      • Omnidirectional
      • Directional
    • Radio Repeaters
       
  • Wireless LAN Switches
    • Basic Configuration
      • "Thick" versus "Thin" Access Points
      • Centralized, Distributed, Collaborative Architectures
    • Major Features
      • Network Design Support
      • RF Management
      • Rogue Detection
      • Handoffs
         
  • 802.11 Radio Link Specifications
    • 802.11- Frequency Hopping and Direct Sequence Spread Spectrum
    • 802.11b- DSSS ≤11 Mbps
    • 802.11a- OFDM ≤54 Mbps
    • 802.11g- OFDM ≤54 Mbps
      • Modulation Techniques
      • Bit Rates/Ranges
      • Channels Provided
      • Capacity and Interference Issues
    • 802.11n/Pre-n: Overall Objectives, Current Status
    • 802.11n Migration Issues
       
  • Media Access Control Protocol
    • Basic Protocol Concepts- CSMA/CA
      • Distributed Control Function (DCF)
      • RTS/CTS Operation (Hidden Node Problem)
      • Point Control Function
    • Message Formats
      • Frame Formats
      • Control Messages
      • Protocol Overhead
    • Power Save Mode and WMM/APSD Power Save
    • Fragmentation and Other Protocol Options
       
  • Privacy and Security Issues
    • WLAN Security Exposure
      • Eavesdropping
      • Unauthorized Network Access
      • Denial of Service/Radio Jamming
      • Man-in-the Middle/Evil Twin Attack
    • Wireless Equivalent Privacy (WEP)
      • Basic Concepts and Goals
      • Cracking Tools and Techniques
      • Basic Improvements
        • Dynamic WEP
        • WEP Cloaking
        • VPN/VLAN Configuration
    • Wi-Fi Protected Access (WPA Certified):
      • Temporal Key Integrity Protocol (TKIP)
      • Message Integrity Check (MIC)
      • WPA Personal versus WPA Enterprise
      • Known WPA Vulnerabilities
    • 802.11i (WPA2 Certified)
      • Advanced Encryption Standard (AES) Concepts
      • Peer-to-Peer Security
    • 802.1x Extensible Authentication Protocol
      • MD5
      • Cisco’s LEAP, FAST
      • Transport Layer Security (TLS)
      • Tunneled TLS/PEAP
    • Virtual WLANs Technique
       
  • Issues and Options for Voice on WLANs
    • Quality Issues in Packet Telephony
      • Voice Coding/Packet Loss
      • Delay and Jitter Impact
      • Echo Control
    • VoWLAN Clients
      • Handset Comparison
      • Wi-Fi Cellular Handsets
      • PDAs, Softphones and other Voice Clients
    • 802.11e for Quality of Service
      • Overall Concepts
      • Wi-Fi Multimedia (WMM)
      • Wi-Fi Multi Media- Scheduled Access (WMM-SA)
      • Performance Impact
    • Vendor Solutions
      • SpectraLink Voice Priority (SVP)
      • Meru Networks’ Air Traffic Control
      • WLAN Switch Capabilities
    • Call Access Control/Load Balancing
    • Other Issues: Security, Handoffs, Battery Life
    • Voice Network Design and Expected Call Capacity
       
  • WLAN/Cellular Integration: Fixed Mobile Convergence
    • Non-integrated Solutions: Simultaneous Ringing
    • Integrated WLAN/Cellular Handsets
    • PBX Controlled Solutions
    • Carrier Controlled Solutions
      • Unlicensed Mobile Access (UMA): T-Mobile’s HotSpot@Home
      • IP Multimedia Subsystem (IMS): Sprint’s Wireless Integration
         
  • Designing the Wireless LAN
    • Cell Layout and Coverage Issues
    • Requirements Definition and Budgeting
    • RF Site Survey
    • Capacity Planning
      • Estimating Requirements
      • Power Control Issues/Co-Channel Interference
      • Limiting Association Rates
    • Manual Design Process/Automated Design Tools
    • The Wireless LAN Switch Solution
       
  • Network Management Issues in Wireless LANs
    • Capacity, Coverage, and Spectrum Management
    • Security Management
      • Wireless Intrusion Detection
      • Rogue Access Points
      • Ad Hoc Networks
    • Trouble Shooting and Diagnostics
    • Network Management for Voice
    • Managing Growth and Expansion
       
  • Wi-Fi Mesh Architectures
    • Mesh Concept and Benefits
    • Mesh Applications
      • City-wide Networks
      • First Responder Networks
      • WLAN Switch Extension
    • Design Considerations in a Mesh
    • Muni Wi-Fi Movement/Neighborhood Networking
    • Mesh Types:
      • Infrastructure, Client, Hybrid
      • Single/Dual Radio
      • Other Mesh Network Features
    • Mesh Standards: 802.11s
       
  • Metro Area Wireless: WiMAX Broadband Wireless Access
    • IEEE 802.16 Standards
      • Line of Sight (LOS)/Non-Line of Sight (NLOS)
      • Fixed/Nomadic/Mobile WiMAX
    • WiMAX versus Wi-Fi Mesh for Metro Area Networks
    • WiMAX Radio Link Interfaces
      • Licensed and Unlicensed Options
      • Radio Link Features and Options (OFDM, OFDMA, etc.)
    • Media Access Control/QoS Capabilities
    • WiMax Markets/Applications
      • Sprint/Clearwire
      • Incumbent LECs
      • Other WiMAX and WiMAX-like Carriers
      • Cellular 4G/LTE
      • WiMAX in Developing Countries
    • WiMAX-like Alternatives
      • Flarion's FLASH-OFDM
      • Motorola's Canopy

  • Emerging Areas in Wireless
    • Ultra-Wideband Transmission (UWB)- IEEE 802.15.3a
    • 60 GHz Radio
    • 700 MHz Systems
    • Radio Frequency Identification (RFID)
    • New Antenna Technologies: Phased Arrays and MIMOs
    • Software Defined Radio/Frequency Agile Radio
    • Cognitive Radio

Course Leader:

Michael Finneran, principal, dBrn Associates, Inc.

 

 
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