Radio transmission and capacity comparisons between ATDMA and CODIT systems for UMTS

This paper summarises the results of CSELT/CNET co-operation devoted to evaluate and compare two access techniques which are candidates for the future Universal Mobile Telecommunications System (UMTS), as defined in the RACE II projects ATDMA (advanced time division mobile access) and CODIT (code division testbed). Simulation results at transmission and system levels are obtained for both systems and a comparison, based on these results, is achieved to help in the selection of an access technique for third generation mobile systems.