A scheme to reduce delay-overheads at the beginning of satellite network communication

摘要

Satellite communication technology has been looked to extending the terrestrial network to remote areas in years. It has been used for the purpose of providing a dedicated line from one to another or of broadcasting from a specified host. However the demand for a switching network such as the Internet, where a host communicates with one of a number of unspecified hosts, is increasing, and expectations are high that satellite technology is adapted. There are some problems when a satellite network is used as switching network. In this paper, we focus on delay allocation at the beginning of communication. For improving this delay-overhead, we propose a method of 'standby bandwidth'. This method enables bandwidth allocation logically as independent from bandwidth reservation of a physical layer. First, we suggest the proposed method in a VSAT network, which is the most popular satellite network. Finally, we evaluate the proposed method in simulation and show that the proposed method performs reliably and effectively.