- course id
- WIMAX-C3DC
- duration
- 3 day(s)
- Aimed At
-
This course is aimed at technical professionals who are familiar with 2G, 3G, and/or other 4G (such as LTE) wireless technologies and desire a comprehensive overview of the WIMAX technology.
- Prerequisites
-
Familiarity with 2G/3G technologies or LTE.
- Course in a Nutshell
-
The course begins with a review of the 3G cellular systems, modulation techniques, RF propagation channel modeling issues, performance improvement techniques, and multipath mitigation methods. This is followed by a detailed discussion of the principle of OFDM, IEEE 802.16 physical layer, and WiMAX signaling. The course concludes with a study of the network architecture, mobility use cases, system performance issues, and a link budget example.
- Customize It!
-
We can customize this course to suit the needs of audiences such as hardware designers, application developers, service designers, sales engineers, marketing/sales personnel, radio planners, and persons involved in defense and homeland security applications relating to WiMAX.
- Learn How To
-
- Course Outline
-
- Overview of 3G Cellular Systems
- CDMA2000, WCDMA, HSPA, 1xEV-DV
- Migration paths (key influencing factors)
- Network architecture overview
- Available theoretical data rates
- Review of Modulation Schemes
- Complex envelope representation of signals and sub-systems
- BPSK, QPSK, 16-QAM, 64-QAM
- Modulation scheme migration path
- BER performance comparison
- Discussion of the impact on Tx and Rx implementations
- SNR and Eb/No definitions
- Propagation Channel Modeling
- AWGN
- Rayleigh/Ricean fading (mechanisms governing this phenomenon)
- Delay spread and concept of frequency selectivity (indoors vs. outdoors)
- Lognormal fading
- Path loss models
- Measured path loss comparisons (indoors vs. outdoors)
- Performance Improvement Methods
- FEC (convolutional, turbo, LDPC) codes
- Encoding principles (block processing, trellis, etc.)
- Decoding principles (Viterbi Algorithm, MAP, etc.)
- Receive antenna diversity (switched, MRC and optimal combining)
- Transmit Antenna diversity (STBC, TxAA, MIMO)
- Multipath Mitigation
- Presentation how different standards resolve multipath
- TDMA vs. CDMA vs. OFDMA solutions
- Discussion of throughput vs. data rate
- OFDM Principles
- Transmission and modulation (sub-carrier, IFFT, S/P, etc.)
- Sub-carrier discussion
- Reception and demodulation (FFT, P/S, etc.)
- Purpose of the Cyclic Prefix (CP)
- Comparison to 3GPP LTE (uplink and downlink)
- Signal processing discussion
- OFDM receiver (channel estimation, etc.)
- MIMO (channel capacity, MAP decisions, MMSE equalization, etc.)
- IEEE 802.16 Physical Layer
- HARQ (comparisons to HSDPA and LTE)
- Discussion of the uplink channels
- Adaptive modulation and coding
- TDD and FDD principles (benefits of both will be discussed)
- Discussion of the downlink channels
- Bandwidth tradeoffs and options
- WiMax Signaling Discussions
- Layer 1, Layer 2 and Layer 3 overview
- Higher layer signaling
- MAC functionality
- Security architecture (authentication, integrity, etc.)
- System Analysis
- Network architecture
- Mobility use cases (handoffs, idle mode, etc.)
- System performance
- Operating frequency bands available
- Link budget examples (discussion of important parameters to optimize)
- Wrap-up: Course Recap and Discussion
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