Book contents
- Frontmatter
- Contents
- 1 Introduction
- Part I The lossless scenario
- Part II The lossy scenario
- 5 Lossy source communication: an approach based on multiple-description codes
- 6 Solving the rainbow network flow problem
- 7 Continuous rainbow network flow: rainbow network flow with unbounded delay
- 8 Practical methods for MDC design
- 9 Using progressive codes for lossy source communication
- 10 Lossy communication of multiple correlated sources
- References
- Index
9 - Using progressive codes for lossy source communication
from Part II - The lossy scenario
Published online by Cambridge University Press: 07 October 2011
- Frontmatter
- Contents
- 1 Introduction
- Part I The lossless scenario
- Part II The lossy scenario
- 5 Lossy source communication: an approach based on multiple-description codes
- 6 Solving the rainbow network flow problem
- 7 Continuous rainbow network flow: rainbow network flow with unbounded delay
- 8 Practical methods for MDC design
- 9 Using progressive codes for lossy source communication
- 10 Lossy communication of multiple correlated sources
- References
- Index
Summary
In the previous chapters, we studied the merits of using balanced multiple-description codes, along with carefully optimized routing strategies for lossy source communication in heterogeneous networks. As discussed in the first part of this book, network coding is able to improve the network communication throughput, when compared to routing only. Starting from this chapter, we consider themerits of using network coding for lossy source communication. The problem becomes very complex in its most general form. Some of the complexities are apparent from the discussion in the following section. A practical subclass of the problem uses progressive source codes along with carefully optimized network coding strategies for efficient multicast of compressible sources, and is the subject of this chapter. But first, some general notes on using network coding for lossy communications.
Lossy source communication with network coding: an introduction
The lossy source communication strategies studied so far have been based on routing of multiple-description codes. The descriptions have been routed and duplicated in the network, without network coding. In this chapter, we start introducing lossy source communication methods that may use network coding ideas for network delivery. We start by introducing a generalization of the network coding problem, called Rainbow Network Coding (RNC). Unlike the current formulation of network coding, RNC recognizes the fact that the information communicated to different members of a multicast group can be different in general.
- Type
- Chapter
- Information
- Network-aware Source Coding and Communication , pp. 132 - 157Publisher: Cambridge University PressPrint publication year: 2011