Evaluation of Multicasting Schemes Based on Joint Multiple Description and Network Coding

Provided by: Institute of Electrical & Electronic Engineers
Topic: Networking
Format: PDF
This paper considers a multicast scenario and compares the average reception quality obtained when combining Multiple Description Coding (MDC) and Network Coding (NC). Plain (Single Description) Network Coding (NC-SDC) serves as reference. In the considered scenario, a single source is multicast to several receivers with various channel conditions. Contrary to a NC-SDC scheme, unable to recover the coded packets when not enough combinations of packets have been received, NC of MDC packets allows a more progressive quality improvement with the number of received packets, and a reduction of the effect of the quantization noise when MDC is performed via frame expansion before quantization.

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