Analysis on decoding error rate of systematic network coding

In this paper, we consider a real-time multimedia broadcasting system with systematic network coding over packet erasure channel. We focus on studying a theoretical decoding error rate and shows that it is a function of encoding number, packet loss rate of wireless channel and code rate of system. Specifically, we show that the decoding error rate is inversely proportional to the encoding number if packet loss rate is low, while it is proportional to encoding number if packet loss rate is high. The simulation results confirm theoretical analysis.