PERFORMANCE ISSUES AND ALGORITHMS FOR DYNAMIC CHANNEL ASSIGNMENT

Using dynamic channel assignment (DCA) algorithms to select communications channels as needed, TDMA or FDMA systems can serve dynamic and nonuniform traffic demands without frequency planning as long as quality is sufficient and equipment is available. In this paper, we consider performance issues and algorithms for DCA in a TDMA portable radio system. We assume a fixed number of traffic servers (time slots) per radio port; therefore, the system capacity is hard-limited by the equipment availability, and the DCA efficiency is compared mainly through the signal-to-interference ratio in both the uplink and downlink directions.