Analysis of QoS for DVB‐RCS‐based IP network

Abstract

PurposeThe internet has been used to transport data in the form of packet. Multimedia applications including voice and video are being sent using the internet. In the past, the internet did not support any kind of sophisticated quality of service (QoS) mechanism. Although the type of service (ToS) field in the internet protocol (IP) header has been present and allowed the differentiated treatment of packets, it was never really used on a large‐scale. IP applications have been mostly used on terrestrial networks so far. This paper aims to describe the architecture of a DVB‐RCS based satellite network supporting interactive and multimedia applications.Design/methodology/apporachThe use of TCP/IP has made it possible to have two way communication using open standard satellite networks based on digital video broadcast return channel via satellite (DVB‐RCS). The voice and video are sensitive to delay and jitter so bandwidth must be guaranteed while transporting it. With the extensive use of IP for carrying voice and video, there is a need to add QoS functionality in satellite networks. The performance of data transfer using voice and video with reference to QoS parameters in satellite network is analyzed in this paper.FindingsThe results show that satellite networks based on DVB‐RCS can carry voice and video traffic and offer good quality of service in terms of packet loss and jitter but are poor in quality in terms of packet delay.Originality/valueThis paper describes the architecture of a DVB‐RCS based satellite network supporting interactive and multimedia applications.