Experimental results of a demand-assignment thin route TDMA system

This paper presents the experimental results measured on the Italsat satellite when data is transmitted '; by using the FODA/IBEA satellite access scheme. The measures presented refer to the packet arrival time jitter, which affects the real-time data, and to the end-to-end delay of the non real-time data. The experimental results, obtained with four Italian active stations of Italsat confirm the analytical results. The paper also shows the advantage of working in pre-assignment mode, a feature of the capacity assignment algorithm which improves the end-to-end delay of non-real-time data during the transient provoked by a traffic step when the system is scarcely loaded.