Performance analysis of IS-136 reverse link digital control channel

Investigates the performance of the set-up multiple access channel of the IS-136 reverse link digital control channel (RDCCH). The performance criteria used are the throughput-delay characteristics and blocking probability in terms of the offered traffic and different access parameters. These characteristics are crucial to overall system capacity since RDCCH capacity ultimately determines the maximum number of busy hour call attempts (BHCAs) in the system. In RDCCH, several access parameters are used to control the growth of the offered traffic. These access parameters are left to the service provider to optimize according to the traffic profile. The access parameters are maximum number of busy/reserved states, maximum number of retries, maximum number of repetitions and maximum stop counter. The optimization of these parameters must provide the maximum channel throughput, minimum delay and minimum blocking probability. An event driven simulation is built to model the mobile unit and both forward and reverse links in the DCCH. The model has also been implemented such that it takes into consideration the propagation impact, the near-far effect, the log-normal shadowing effect, and multi-access collision cases