Abstract
In this paper, we propose a priority frame-work to support smooth video communication in an EG-PRS network. The priority framework include two ele-ments, an H.263 based hierarchical video codec and a video packet discard policy. We study a threshold based policy and a channel rate based policy. From simulations, we show that the hierarchical codec with packet discard con-trol results in significantly better picture quality for the reconstructed video at the receiver. In addition, we show that the channel rate based discard policy has better per-formance than the threshold based policy. For the channel rate based policy, we apply a fluid analysis to study the performance of the packet buffer.