ETD

• DTT
• DVB-T
• GNURadio
• Media Broadcasting
• OFDM
• SDR
• Software Radio

Introduction
Full-Hardware solutions: a heavy burden for further DSP development
A real world example: FM Broadcast, persistence of an old technology
Modern, Competitive Multimedia Broadcasting Infrastructure: a Wishlist
The Full-Software proposal: a bridge between research effort and deployment
The Soft-DVB concept implementation: a feasibility proof
Advantages of a Fully-Software solution for ETSI DVB-T signal generation

1 The DVB-T Standard for broadcasting terrestrial digital television
Main features
Typical DVB-T propagation scenarios: Rayleigh and Ricean Channels
Analysis of ETSI DVB-T functional blocks

2 The OFDM Modulation
Overview
Usage within ETSI DVB-T: benefits and implementation choices
Orthogonality of Signals and Spectral Efficiency
Multipath Resistance

3 Soft-DVB
Preliminary choices: The USRP system and the GNURadio Framework
Soft-DVB Architecture
Development Stages: the check-dumps
TPS Implementation
Hardware trivia and Headaches
On Air... pardon, on Coax
Signal Debugging
On Air, Actually!

4 Optimization
CPU-time vs Memory Trade-Off
Bit-Level Operations and the convolutional encoder example
Vectorized vs Scalar Structures

5 Implementation Results
Laboratory Benchmarks
Final Implementation Results

6 Real World Deployment scenarios and Perspectives
Emergency Broadcasts
Mission-Dedicated Broadcasts
Highway Traffic Information Systems
Quick and Cheap Network: Ideas for a new Media Broadcasting Model
On Site Broadcasting
Parallel CPU Architectures: a huge computing power boost

7 Conclusions