OFDM (Orthogonal Frequency Division Multiplexing) for Wireless Comunications

Overview

Orthogonal Frequency Division Multiplexing (OFDM) is a bandwidth efficient digital modulation technique which forms the basis of many wireless standards such as 802.11, 802.16, 802.20, DVB-T/H and 3GPP LTE.

This intensive 3 day course incorporates a wide range of topics, from the fundamentals of OFDM modulation to advanced techniques such receiver synchronisation and channel estimation. Presented concepts are reinforced with case studies of OFDM based cutting edge wireless standards. The course is presented in an intuitive manner, and is underpinned by a strong practical element in which attendees are invited to design and simulate physical layer elements of OFDM systems.

Course Aim

To educate participants in the theory, algorithms, implementation and application of OFDM modulation and receiver synchronisation techniques as well present case studies of cutting edge wireless standards that make use of OFDM.

The course will include:

• OFDM Principles and Implementation

• Advanced and Emerging Architectures

• OFDM in 802.xx and LTE

• OFDM Receiver Design

• Power Considerations

• Propagation Channels.

Course Presentation

DSP and wireless system physical layer design is clearly a very mathematical subject and often seen as somewhat esoteric. In this course the necessary mathematical theory is presented on a "need to know basis" in an intuitive style. Through the use of simulations and DSP demonstrations attendees shall quickly learn the key principles required for a more complete understanding. This presentation style and ethos has been presented with considerable success to many companies, both small and large.
The course format is 45% Lectures, 40% DSP software hands-on simulation and 15% Tutorial Discussion.

Achievable Skills

On successful completion of the course, attendees will be able to:

* Use key DSP algorithmic techniques for the implementation of OFDM wireless system
* Understand the main components of an OFDM transmitter
* Appreciate the design strategies and components for an OFDM based receiver
* Understand the use of OFDM within various wireless standards
* Recognise the DSP hardware and software implementation cost of OFDM implementation
* Know the advantages (and some disadvantages) of OFDM over techniques such as spread spectrum
* Understand methods for channel equalisation and channel coding
* Understand synchronisation techniques for OFDM based systems
* Recognise the future evolution of OFDM systems towards beamforming and MIMO systems.

Laboratory Sessions

Professional DSP design software will be used for the laboratory sessions. This advanced software provides a comprehensive and state of the art DSP toolbox for modern signal processing.