Broadcasting Video over the Cellular Network and the Internet

Because of the ubiquitous nature of the cellular 3G/4G network and the Internet, broadcasting video over the IP networks has gained lot of momentum. However, the lack of Quality of Service (QoS) required to stream real time video makes broadcasting over these networks very challenging. — In bandwidth constraint IP networks, such as the cellular network, video encoding techniques like H.264/AVC provides good video quality at substantially lower video bit rates. Transport protocols have been adopted to provide a complete streaming service between the end users in this packet based network. Excessive delay and bursty packet losses experienced in these networks make QoS control in real-time streaming application crucial. The widely used TCP protocol might not be efficient and its key feature, retransmission of erroneous or lost packets, applicable. UDP protocol, which is generally preferred for real-time applications, is not reliable and lacks flow control capabilities. In this paper, we will focus on the issues faced with broadcasting video stream over the cellular network and the Internet and possible solutions toward achieving low latency broadcast with a certain degree of QoS.

Published

2012-10

Content type

Original Research

DOI

10.5594/M001486

ISBN

978-1-61482-952-2