WiMAX (Worldwide Interoperability for Microwave Access- IEEE 802.16) is a standards-based wireless
technology (an implementation of 802.16: 802.16-2004 and 802.16e) that provides high-throughput broadband connections.
WiMAX can be used for a number of applications, including "last mile" broadband connections, hotspot
and cellular backhaul, and high-speed enterprise connectivity for businesses.
This course provides a detailed technical view of WiMax RF Planning and Network Design. It is an advanced course
reviewing the technical specifications and standards from a RF Network Planning and Implementation point of view.
This course provides an overview of WiMax RF, technologies, applications and standards. Other important topics
such as protocol layers, QoS, throughput, coverage, capacity planning, testing, interoperability, interference
and security are discussed. Basic RF theory, microwave, LOS, NLOS, Link budget math, troubleshooting foundations
and site survey are explored.
After a general introduction to wireless networks, this practical course moves quickly into the WiMax (802.16-2004,
802.16e) protocols, PHY, MAC (Media Access Control), framing, TDD/FDD, FDMA/OFDMA, RF planning and design. Real-world
experiences through case studies and implementation tips located throughout the course reference material. |
|
After successfully completing the course the student will:
- Understand the basic concepts of 802.16-2004 and 802.16e
- Understand 802.16-2004 and 802.16e Protocols (PHY, MAC)
- Understand the technical implementation of different types of 802.16-2004 and 802.16e
- Understand 802.16-2004 and 802.16e RF concepts and issues
- Explore all relevant and important topics from basic RF theory to link budget math
- Explore WiMAX RF regulations, design, deployment and optimization
- Gain a general understanding of WiMAX RF planning, coverage and capacity
- Be able to select the most effective WiMAX type from a wide assortment of recent and emerging
implementations
- Be able to perform a more efficient RF design and operational support of WiMAX
|
|
Broadband Wireless Access: an introduction to WiMAX and IEEE 802.16
- WiMAX as a WirelessMAN Technology
- Regulations
- 802.16 Benefits
- Application and Services
- "Last Mile" Broadband Connections
- Hotspot and Cellular Backhaul
- High-speed Enterprise connectivity
- 802.16 Frequency Bands
- 802.16 Family of Standards
- Current Deployments
- IEEE 802.16-2004 enhanced support for indoor CPE
- IEEE 802.16e as an extension to EEE 802.16-2004
- Implementation Scenarios and Market Opportunities
- System Profiles
WiMAX Frequency Bands
- 10-66 GHz licensed bands
- Frequencies below 11 GHz
- License-exempt frequencies below 11 GHz (primarily 5-6 GHz)
- 2.3, 2.5, 3.5, and 5.8 Bands
- Air interface nomenclature and PHY compliance
- Changes in 802.16e
WiMax Technical Information
- The Interoperability Challenge
- 802.16a amendment: 2 to 11GHz
- IEEE 802.16a and ETSI HiperMAN standards
- System Profiles for 2 - 11 GHz
- 802.16a and HiperMAN standards
- The MAC profiles for both WirelessMAN (Licensed) and WirelessHUMAN (License-exempt)
- System Profiles for 10-66 GHz
- IEEE 802.16c
- 802.16-2004 and 802.16e
- Basic ATM system MAC profile
- Basic IP system MAC profile
- 25 MHz wide channel for (typically for U.S. deployments) use in the 10-66 GHz range
- 28 MHz wide channel for (typically European deployments) use in the 10-66 GHz range
- Sub-profiles: FDD and TDD
WiMAX Protocols
- Physical Layer (PHY) specifications
- Channel Spacing, Modulation
- Physical Layer Architecture
- Physical Layer Operations
- 802.16 PHY (SCa, FDMA, OFDMA and SCOFDM)
- Orthogonal Frequency Division Multiplexing (OFDM)
- Orthogonal Frequency Division Multiple Access (OFDMA)
- Scheduling and Link Adaptation
- Adaptive Modulation Scheme
- Binary Phase Shift Keying (BPSK)
- Quadrature Phase Shift Keying (QPSK)
- Quadrature Amplitude Modulation (QAM)
- Variable-rate Read-Solomon (RS)/Convolutional Coding (CC) scheme
- ARQ active on all connections
- TDD vs. FDD
- Symmetric UL/DL traffic
- 256 point FFT OFDM PHY mode
- Scalable OFDMA (SOFDMA) Physical Layer in IEEE 802.16 WirelessMAN
- STC and Other Standard-Compliant Diversity Schemes
- Mutlicarrier Design Requirements and Tradeoffs
- The Basics of OFDMA Frame Structure
- Subcarrier Allocation Modes
- Diversity Options
- Ranging in OFDMA
- Channel Coding
- PHY Transmit diversity in the Downlink (DL)
- H-ARQ (Hybrid ARQ)
- Space Time Coding (STC)
- Adaptive Antenna Systems (AAS)
- Multiple Input, Multiple Output (MIMO)
- MIMO for Throughput and Range
- Spatial Division Multiple Access (SDMA)
- Other Diversity Schemes
802.16 Physical Layer Procedures (PHY)
- The original 802.16 standard and the 10-66GHz frequency band
- 802.16 Service Areas
- WiMAX’s technology for LOS and NLOS environments
- PHY Considerations
- Effect of multipath
- High Capacity Links on both the Uplink and the Downlink
- WirelessMAN-SC PHY
- WirelessMAN-SCa PHY
- WirelessMAN-FDMA PHY
- WirelessMAN-OFDMA PHY
- 802.16-2004 and 802.16e PHY
- What are Non line-of-sight (NLOS) Connections?
- Time Division Duplexing (TDD)
- Frequency Division Duplexing (FDD)
- The 802.16e and Mobile 802.16 Clients
- Hand-off Between 802.16 Base Stations
802.16 Medium Access Control (MAC)
- MAC Layer Operations
- MAC Frame Structure
- Framing in Detail
- MAC Frame Type and Classes
- Access Methods
- Synchronization
- Power management
- Variable Length Protocol Data Unit (PDU)
- Self-correcting Bandwidth Request/Grant Scheme
- Link adaptation and Automatic Repeat Request (ARQ) functions
- Fast path activities (such as scheduling, packing, fragmentation, and ARQ)
- UL and DL schedulers
- QoS on IEEE 802.16
- High bit rates (up to 268 mbps each way)
- Delivering ATM Compatible QoS: UGS, rtPS, nrtPS, and Best Effort
- Implementation Challenges on MAC and QoS
WiMAX RF Planning, Coverage and Capacity
- RF and Capacity Planning
- RF theory to link budget math
- Equipment manufacturers, products, systems and services
- Spectrum policies and licensing
- Frequency, capacity, coverage and interference
- Site survey and selection
- RF engineering and network design
- Project management, vendor selection, installation and commissioning
- RF Optimization: testing and troubleshooting
- Requirements Analysis Steps
- Analyzing the Feasibility of a 802.16
- Subscriber Station (SS)
- Base Station (BS)
- Base Stations Locations
- BS Frequency Assignments
- Complete Coverage (no gaps)
- Adequate Capacity
- Design Based on Extensive Measurements
- Propagation and coverage
- Complete coverage of target space
- Interference sources
- Capacity in 802.16
- Consideration of high- and low-density areas Throughput
- Interworking and coexistence with mobile and cellular networks
- A Complete 802.16 Link Budget Analysis and Modeling
- Fixed, nomadic and mobile channel models
- How to model a radio channel in WiMAX?
- Fixed and Nomadic channel models
- Fading characteristics fade distribution, K-Factor
- Modified Stanford University Interim (SUI) channel models
- SUI channel models implementation
- Mobile channel models
- Mobile channel models implementation
- Simulation Results
Implementing a 802.16 Network
- Designing and Planning a 802.16
- Preparing for Operational Support of a 802.16
- Installing a 802.16
- Service Classes
- Fragmentation, Equalizers and RAKE Receivers
- Installation Options
- Performance
- Multivendor Operability
- QoS Enhancements
- Dynamic Frequency Selection, Transmit Power Control
- Upcoming Standards and Future Trends
- Forthcoming IR standards
- Other RF standards: DECT, Bluetooth, WATM, HomeRF
- Integration of WLAN and Cellular (Mobile Networks)
- 3GPP Standards and Mobile IP
- Performance evaluation of the adaptive modulation, channel coding, space-time coding and
equalization techniques
WIMAX RF Optimization
- RF Optimization Principals
- WiMax Optimization Parameters
- Testing and Measurements
- Simulation Approaches
- Case Studies
WiMAX Operations and Traffic Cases
- Network Entry
- Downlink Channel Synchronization
- Initial Ranging
- Capabilities Negotiation
- Authentication
- Registration
- IP Connectivity
- Transport Connection Creation
|
