Research on real-time performance of bandwidth allocation for LTPB network

The problem of guaranteeing real-time message transmission in LTPB network, linear token passing bus, has been studied. Bandwidth allocation for LTPB aims at real-time message transmission, and the key parameter, the minimum amount of time used for real-time message transmission in unit time, is an important factor to the property and validity of the bandwidth allocation. Having found out a defect in current real-time performance analysis method, a concept of the worst case situation is proposed and a reasonable model is developed. the important result in real-time performance analysis is got for LTPB network, and the analytic foundation is established to seek the better bandwidth allocation scheme.