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Technology Backgrounder - WiMAX Technology
This Course is intended to provide participants with a tutorial on the WiMAX standard as well as the technologies that it relies on. Participants will be provided with a solid understanding of the capabilities, strengths, and limitations of WiMAX as an alternative solution for broadband wireless services. This course gives an overview of WiMAX technology and a high level view of the standard, system architecture, physical and MAC layers, radio network design and link budget, as well as comparison with other 3G cellular technologies. The course also focuses on Orthogonal Frequency Division Multiplexing (OFDM) technique, as well as other fundamental knowledge in wireless communication principles to understand and appreciate the technology. Participants will be given an introduction to spectral efficiency and various techniques to increase the spectral efficiency such as Multiple Input Multiple Output (MIMO) or Beamforming.
| Who should Attend |
Class Size |
10-15 Participants |
The course is designed for engineers and technical professionals with background in a contemporary wireless technology such as GSM, cdmaOne, 1xRTT, or UMTS who needs a solid technical tutorial on WiMAX.
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| Pre-requisite Knowledge |
Duration |
3 days (21) hours |
Participants should have a bachelor of science in Electrical Engineering, Mathematics,
Physics, or a related subject along with some experience in the field of telecommunication engineering. |
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| Course Outline |
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- Introduction to WiMAX (1HR)
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- Course Overview
- Industry Overview & Trends
- WiMAX Definition and Standards
- WiMAX Applications
- Wireless Broadband Access
- WiMAX Benefits
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- Spectrums and Channel Characteristics
- Regulatory Issues
- LOS vs. Non LOS
- WiMAX for the NLOS Environment
- Modulation and Duplexing
- Data Rates and Bandwidth
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- The WiMAX Forum
- ETSI, HiperAccess, HiperMAN
- IEEE 802.16, 802.16-2004, 802.16a, 802.16e, 802.16f, WiBro
- Comparison with Other Wireless Standards
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- System Architecture (1HR)
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- WiMAX System Architecture
- WiMAX Equipment – Antennas, Base Station (BS), Customer Premises Equipment (CPE), Network Management System (NMS)
- Mesh Networks
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- Review of Modulation and Multiple Access
- Signal Orthogonality
- m-ary schemes, BPSK, QPSK, QAM. Bandwidth and Power Tradeoff
- Fading Mechanisms - Fast Fading. Doppler Effects, Doppler Spread & Coherence Time, Multipath & Inter-Symbol Interference, Delay Spread & Coherence Bandwidth, Rayleigh and Ricean Fading
- Counter-Measure Techniques - Fade Margin, Diversity & Combining, Digital Techniques
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- OFDM Basics
- Symbol Structure & Sub-Channelization, Scalable OFDMA
- TDD Frame Structure
- Other Advanced PHY Layer Features - Smart Antenna, Antenna Diversity, Adaptive Modulation, MIMO, FEC, HARQ, Fractional Frequency Reuse
- 802.16 OFDM PHY Processing Chain
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- MAC Structure and MAC PDU Formats
- Logical Channels – Connection ID, Service flow ID
- WiMAX Protocol Layers – MAC Convergence, MAC Layer, MAC Privacy, Physical Layer, Security Sub-layer
- Types of Connection – Basic, Primary Management, Secondary Management, Transport Connection
- Quality of Service – Service Availability, Throughput, Delay, Jitter, Error Rates
- Scheduling Services – Unsolicited Grant Service, Real Time Polling Service, Non-Real Time Polling Service, Best Effort Service
- WiMAX Operation – Channel Acquisition, Initial Ranging, Medium Access control, Radio Link Control
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- Radio Network Design (3HR)
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- Basic Design Issues
- Fading and Link Calculation, Rain Attenuation
- Path Loss Models
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- Roadmap for 3G Enhancements
- Comparing Mobile WiMAX to 1xEVDO and HSPA - Common Features, Key Advantages of Mobile WiMAX
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- Course Review and Discussions (1HR)
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