Effective bandwidth based capacity request for real-time voice in GEO satellite system

There is a growing need for a voice service with an advanced communication technology. In low infrastructure areas such as mountain, battlefield, and in-flight, a geostationary (GEO) satellite system is regarded as an alternative solution to provide real-time voice services. In this paper, an effective bandwidth based capacity request for real-time voice traffic in military satellite system. First, the transparent satellite architecture for continuous rate assignment (CRA) request procedure is proposed. Next, for an accurate estimation of effective bandwidth, we implement a voice traffic model multiplexed in the return channel satellite terminals (RCST), which is originated from user terminals (UTs) and multiplexed in an RCST. Further, an analytical model is developed for evaluating the performance, such as the capacity requests, the number of available RCSTs, optimal medium access control (MAC) queue length, and ratio of resource waste. It is demonstrated that the proposed scheme has high efficiency of resource allocation, and low ratio of resource waste.