Priority-based random access algorithm for TD-SCDMA trunking system

Abstract

In the TD-SCDMA trunking communication system, users need to have predefined priority in the trunking group, according to the users priority access the uplink traffic channel, the users with the high priority give priority to make use of these channels. To solve these problems, we proposed one random access algorithm based on priority to maximize the access success rate and provide the high priority users with better QoS (Quality of Service). For further discussion, three kinds of algorithms were given to divide the priorities in this article. Each algorithm was simulated and its applicable situation was analyzed. © 2012 Springer-Verlag.