Optimized power control using LQ scheme for CDMA systems

Ji Young Byun; K. O. Young-Chai; Kwan Ho You

Optimized power control using LQ scheme for CDMA systems

Ji Young Byun, K. O. Young-Chai, Kwan Ho You

Research output: Contribution to journal › Article › peer-review

Abstract

In this paper, we propose an optimal power control algorithm with fast convergence rate for CDMA cellular systems. The new power control algorithm is based on linear quadratic control theory (LQR). Using the state feedback control designed to minimize an objective function, each mobile performs a successful transmission with optimal power. Simulation results show a fast convergence rate to target SIR with less power consumption, and an augmented channel capacity through decreased outage probability.

Original language	English
Pages (from-to)	2909-2912
Number of pages	4
Journal	IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Volume	E87-A
Issue number	11
Publication status	Published - 2004 Nov

Keywords

CDMA
LQR
Mobile communication
Optimal power control
SIR

ASJC Scopus subject areas

Signal Processing
Computer Graphics and Computer-Aided Design
Electrical and Electronic Engineering
Applied Mathematics

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abstract = "In this paper, we propose an optimal power control algorithm with fast convergence rate for CDMA cellular systems. The new power control algorithm is based on linear quadratic control theory (LQR). Using the state feedback control designed to minimize an objective function, each mobile performs a successful transmission with optimal power. Simulation results show a fast convergence rate to target SIR with less power consumption, and an augmented channel capacity through decreased outage probability.",

keywords = "CDMA, LQR, Mobile communication, Optimal power control, SIR",

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AU - You, Kwan Ho

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N2 - In this paper, we propose an optimal power control algorithm with fast convergence rate for CDMA cellular systems. The new power control algorithm is based on linear quadratic control theory (LQR). Using the state feedback control designed to minimize an objective function, each mobile performs a successful transmission with optimal power. Simulation results show a fast convergence rate to target SIR with less power consumption, and an augmented channel capacity through decreased outage probability.

AB - In this paper, we propose an optimal power control algorithm with fast convergence rate for CDMA cellular systems. The new power control algorithm is based on linear quadratic control theory (LQR). Using the state feedback control designed to minimize an objective function, each mobile performs a successful transmission with optimal power. Simulation results show a fast convergence rate to target SIR with less power consumption, and an augmented channel capacity through decreased outage probability.

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KW - LQR

KW - Mobile communication

KW - Optimal power control

KW - SIR

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Optimized power control using LQ scheme for CDMA systems

Abstract

Keywords

ASJC Scopus subject areas

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