Genetically enhanced performance of a UTRA-like time-division duplex CDMA network

In this contribution a dynamic channel allocation (DCA) algorithm is developed, which minimizes the amount of multi-user interference (MUI) experienced at the base stations (BSs) by employing genetic algorithms (GAs). A GA is utilized for finding a suboptimum, but highly beneficial uplink (UL) or downlink (DL) timeslot (TS) allocation for improving the achievable performance of the third generation UTRA system´s time division duplex (TDD) mode. It is demonstrated that a GA-assisted UL/DL timeslot scheduling scheme may avoid the severe BS to BS inter-cell interference potentially inflicted by the UTRA TDD CDMA air interface owing to allowing all TSs to be used both in the UL and DL.