Title :
Genetic algorithm aided timeslot scheduling for UTRA TDD CDMA networks
Author :
Ni, S. ; Hanzo, L.
Author_Institution :
Sch. of Electron. & Comput. Sci., Univ. of Southampton, UK
fDate :
3/31/2005 12:00:00 AM
Abstract :
It is demonstrated that genetic algorithms may be utilised 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 this novel GA-assisted UL/DL timeslot scheduling scheme is capable of avoiding 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, hence potentially quadrupling the carried teletraffic and halving the uplink power.
Keywords :
code division multiple access; genetic algorithms; scheduling; time division multiplexing; BS inter-cell interference; UTRA TDD CDMA networks; UTRA system; air interface; downlink timeslot allocation; genetic algorithm; teletraffic; time division duplex; timeslot scheduling; uplink power; uplink timeslot allocation;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20058185