Adaptive Random Network Coding for Multicasting Hard-Deadline-Constrained Prioritized Data

Random network coding (RNC) is a promising solution for multicast services over wireless networks. In this paper, we consider the problem of deadline-constrained multimedia multicast from a single transmitter to multiple users over wireless erasure channels. A novel transmission scheduling strategy based on adaptive RNC is developed to maximize the throughput of multicast sessions under a deterministic delay constraint. Particularly, we optimize the number of multimedia data layers under different assumptions on users' feedback. Simulation results show the effectiveness of the proposed methods.