Title :
Unequal error protection rateless coding design for multimedia multicasting
Author :
Cao, Yu ; Blostein, Steven ; Chan, Wai-Yip
Author_Institution :
Dept. of Electr. & Comput. Eng., Queen´´s Univ., Kingston, ON, Canada
Abstract :
We study the design and optimization of unequal error protection (UEP) rateless codes for scalable multimedia multicasting. We formulate two general problems of optimizing UEP rateless code for multimedia multicasting to heterogenous users: one focusing on providing guaranteed quality of service (QoS) and the other focusing on providing best-effort QoS. A random interleaved rateless encoder design is proposed. Unlike previous designs, existing standardized raptor codes can be directly applied to this design without degrading performance. For each problem, optimal layer selection parameters are obtained either analytically or numerically. Numerical results demonstrate that the proposed optimized random interleaved UEP rateless code outperforms non-optimized rateless codes and recently proposed UEP rateless codes.
Keywords :
interleaved codes; multicast communication; multimedia communication; quality of service; QoS; heterogenous users; optimal layer selection parameters; quality of service; random interleaved rateless encoder design; scalable multimedia multicasting; standardized raptor codes; unequal error protection rateless coding design; Code standards; Computer errors; Decoding; Error correction codes; Forward error correction; Multimedia communication; Multimedia systems; Network servers; Quality of service; Streaming media;
Conference_Titel :
Information Theory Proceedings (ISIT), 2010 IEEE International Symposium on
Conference_Location :
Austin, TX
Print_ISBN :
978-1-4244-7890-3
Electronic_ISBN :
978-1-4244-7891-0
DOI :
10.1109/ISIT.2010.5513792