제어로봇시스템학회:학술대회논문집

제어로봇시스템학회 (Institute of Control, Robotics and Systems)
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Distributed Constrained Power Control with Fast Outage Convegence in CDMA systems

  • Lee, Moo-Young (Department of Digital Electronic Engineering, Doowon Technical College) ;
  • Oh, Do-Chang (Department of Control & Instrumentation Engineering, Konyang University) ;
  • Kwon, Woo-Hyen (School of Electronic and Electrical Engineering, Kyungpook National University)
  • 발행 : 2003.10.22
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초록

This paper proposes a fast distributed constrained power control (FDCPC) with non-stationary relaxation factor to next power update in CDMA cellular power control system. We review unconstrained control algorithms, the distributed power control (DPC), unconstrained second order power control (USOPC) and DPC with stationary relaxation factor (DPCSRF). Under the unconstrained condition, the convergence analysis shows theoretically that the convergence rate of DPC is the fastest one. However, under the constrained control algorithms, DCPC is not the fastest one any more because of transmission power constraint. To improve the convergence speed, the DCPC with non-stationary relaxation factor (FDCPC) are proposed. Under the constrained condition, the convergence rate of FDCPC outperforms that of DCPC and CSOPC.

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