MEKANISME POWER CONTROL DENGAN REALISASI ADPCM PADA KANAL UPLINK SISTEM RADIO MOBILE SELULER CDMA

• Main Author: Mustopa
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/5124
• Institution: Institut Teknologi Bandung

<p>Abstrak:<p align=\"justify\"> <br /> <br /> Power control (PC) is an important issue in a direct sequence -code division multiple access (DS-CDMA) cellular mobile radio system. Higher link performance and optimum capacity can not be achieved unless an appropriate PC mechanism is employed. In previous research, a pulse code-modulation (PCM) realization of strength-based PC mechanisms for uplink communication has been studied by simulation. In order to obtain higher PC track-ability, in this thesis we study adaptive differential pulse code- modulation (ADPCM) realization of the above PC mechanisms for the uplink of a DS-CDMA cellular mobile radio system. The simulation results presented here indicate that.<p align=\"justify\"> <br /> <br /> <br /> PC mechanisms with ADPCM realization for the uplink can achieve a lower outage probability and thus higher link performance than PC mechanisms with PCM realization. We also obtain optimal design parameters for the mechanism.