Table of Contents
ISRN Communications and Networking
Volume 2011 (2011), Article ID 481247, 11 pages
http://dx.doi.org/10.5402/2011/481247
Research Article

Robust IPTV Delivery with Adaptive Rateless Coding over a Mobile WiMAX Channel

School of Computer Science and Electronic Engineering, University of Essex, Colchester CO4 3SQ, UK

Received 8 May 2011; Accepted 5 June 2011

Academic Editors: M. Maier and C. Yang

Copyright © 2011 Laith Al-Jobouri et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

As intelligent content management of IPTV moves popular material nearer to the end-user, application-layer channel coding schemes, involving the retransmission of extra redundant data, become attractive as a result of the reduced latency. Application-layer, adaptive rateless channel coding is exploited in this paper's scheme to reconstruct streamed video across an IEEE 802.16e (mobile WiMAX) channel. The paper concentrates on the trade-offs in implementing the scheme, showing that exact calculation of the redundant data has the potential to reduce the forward error correction bit-rate overhead. To reduce delay, an appropriate compression rate should also be selected.