Consecutive redundancy control for robust multiple description coding over unreliable networks

Different system may have different request on coding efficiency and security, even the characteristics of the unreliable networks are fixed, such as bit error rate, packet loss rate and bandwidth. In this paper, a novel multiple description coding (MDC) scheme is presented for the unreliable networks, considering both the network characteristics and system request. An error-resilient problem based on MDSQ method is proposed and analyzed, and then an iterative redundancy-control method is designed based on ERMDC by index pair ordering. Accordingly, a fast IA method is proposed only considering the high redundancy case. Simulation results show that the redundancy can be easily and precisely adjusted to meet all the requests. Meanwhile, the error resilience and R-D bound of MDC is self-adaptively guaranteed well enough for all cases.