Video Transmission Over Next Generation Emergency Services

The delivery of multimedia services such as video streaming over 4G/LTE is becoming ever more realistic due to the High Efficiency Video Coding (HEVC) standard. However, streaming of video is bandwidth expensive. The quality of encoded video is hugely influenced by initial codec setting and dependent on the varying network quality of service. Understanding the impact that the encoding process of any codec has on video quality and the impact that network impairment has on delivered quality is paramount. This paper presents experimental results of the investigation of the impact of HEVC encoding and codec settings has on video quality and of the impact of LTE network quality degradation has on video quality. Results show that both the encoding and streaming are highly sensitive to codec setting as well as to the video content and suggest that the impact should be jointly considered.