OFDMA Explained
Who Should Attend?
The course is intended for all telecom specialists and professionals wishing to understand the key technique standing behind 3GPP LTE and mobile WiMAX (IEEE 802.16e-2005), namely Orthogonal Frequency Division Multiple Access (OFDMA). This includes equipment design engineers, network deployment specialists, researchers, research managers, and technology decision makers.
Course Content
- Introduction to wireless communications.
- Review of classical schemes for radio transmission and multiple access.
- Propagation through wireless channels.
- Time, frequency and space channel selectivity.
- Rayleigh/Rician fading.
- Fundamentals of Orthogonal Frequency Division Multiplexing (OFDM).
- OFDM symbol, cubcarriers, samples, cyclic prefix.
- Functional description of OFDM transmitter and receiver.
- PAPR problem.
- Synchronization algorithms.
- Channel estimation and correction algorithms.
- Fundamentals of OFDMA.
- Time and frequency domain multiuser diversity.
- Advantages of OFDMA.
- Dynamic radio resource management schemes.
- Scalable OFDMA.
- Spatial reuse of resources.
- Micro-scenario: combination of OFDMA with MIMO.
- Macro-scenario: cellular OFDMA and methods to control co-channel interference.
- Review of OFDMA systems.
- WiMAX (IEEE 802.16d, 802.16e, 802.16m), 3GPP-LTE, LTE Advanced.
- Summary.
- Highlight of the main OFDMA advantages and disadvantages.
- Positioning of OFDMA versus other transmission / multiple access schemes (e.g., WCDMA, SC-FDMA).
Course Objectives
The aim of this course is to explain in detail OFDMA’s principles of operation. This knowledge is indispensable for all professionals implementing or using radio interfaces based on OFDMA (such as mobile WiMAX and 3GPP-LTE).
Pre-requisites
Prior experience with 2G / 3G and /or WiMAX / LTE is a plus but is not strictly required. Background in wireless communications will be of help.
Training structure
Three days training divided into logical sessions.
Methodology
Instructor led training.