Video multicast based multiple description coding and multi-paths in wireless ad hoc networks

Multiple description coding (MDC) has been proposed as a source coding technique that is robust to channel errors for video transmission. MDC generates multiple independent bit-streams, where the multiple bit-streams are referred to as multiple descriptions (MD). Furthermore, it enables a useful reproduction of the signal when any description is received correctly. This paper proposes a new multicast heuristic algorithm, that attempts to take the benefit of MDC properties and multiple paths, to improve the user´s satisfaction for a group of heterogeneous destinations in wireless ad hoc network. Extensive simulations clearly demonstrate the effectiveness of the proposed algorithm in improving the user´s satisfaction irrespective of the number of destinations in the multicast group.