Robust Video Streaming over an Urban VANET

Because of restricted mobility patterns, multi-hop routing, and wireless channel conditions, streaming video over a vehicular ad hoc network (VANET) is a daunting task. This paper demonstrates that H.264 codec flexible macroblock ordering (FMO) with receiver error concealment is capable of streaming good-quality video across a VANET. FMO is shown to be superior to other error resilience techniques but attention should be given to packet size, choice of protocol and the rate the video is released into the network if there are multiple destinations. Settings close to those of the emerging IEEE 802.11p standard for VANETs were emulated for a Manhattan grid mobility model.