Modeling a class of priority-based ATM communication switch designs

Owing to its efficiency and flexibility, asynchronous transfer mode (ATM) has emerged as the most promising transfer technique for wide-area broadband telecommunications that provide text, image, voice, and video information services. The paper deals with the modeling of a class of ATM communication switch designs. Various buffering mechanisms are considered in the switch design to alleviate cell contentions. Analytical models for these design alternatives are developed for the case of a nonuniform, traffic pattern, the favorite load, which can reflect some typical ATM applications. Performance comparisons are also conducted for a number of design alternatives