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

Abstract

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.