Broad-band satellite networks - The global IT bridge

Next-generation broad-band satellite networks are being developed to carry bursty Internet and multimedia traffic in addition to the traditional circu it-switched traffic (mainly voice) on a global basis. These satellites prov ide direct network access for personal applications as well as interconnect ivity to the terrestrial remote network segments. The main requirement in s uccess of these networks is that they should be able to transmit high dam r ate traffic with prescribed quality of service (QoS). Thus, the broad-band satellite network has no choice other than the use of ATM technology ann to be optimized for Internet-based traffic. ATM is the promising technology f or supporting high-speed data transfer potentially suitable for all varieti es of private and public telecommunications networks. If: on the other hand , is the fast-growing Internet layer protocol that is applicable over any d ata link layer: Internet-based applications fire the emerging source of tra ffic in the future wireless networks and broad-band satellite networks shou ld consider Internet as the primary service In this paper, we will discuss the traditional ATM and wireless ATM networks and explain the characteristi cs of the wireless IP networks. The paper then uses those concepts in defin ing the criteria for the broad-band satellite networks such as the QoS md t raffic management. Application of the broad-band satellite networks will be also proposed.