DESIGN ISSUES IN A CDMA CELLULAR-SYSTEM WITH HETEROGENEOUS TRAFFIC TYPES

In this paper, the performance of a code-division multiple-access (CDM A) cellular system with various traffic types is examined. Traffic int egration and resource management are two major issues in the design of the next generation of wireless networks with integrated services, To provide design guidelines for traffic integration, the impact of the line rate tactual transmission hit rate in the radio channel) selectio n on the system capacity is examined. Since in a CDMA. system the sign al from one specific user is spread over the entire available bandwidt h, the actual bandwidth resource occupied by a user depends on the amo unt of the transmission power of the user. In this paper, we also addr ess how to assign suitable power levels to the different traffic types . A method for optimizing the power assignment for multiple traffic ty pes is developed.