By Topic

Robust Two-Loop Power Control for CDMA Systems via Multiobjective Optimization

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

3 Author(s)
Chang-Yi Yang ; Department of Computer Science and Information Engineering, National Penghu University of Science and Technology, Magong, Taiwan ; Bor-Sen Chen ; Chia-Yow Jian

A robust two-loop power control scheme for code-division multiple-access (CDMA) systems is proposed in this study. It includes an outer-loop controller and an inner-loop controller. A fuzzy logic controller (FLC) is designed in the outer loop to adjust the target signal-to-interference-plus-noise ratio (SINR) for the required quality of service (QoS). It can prevent a vicious cycle and reduce the outage probability. In the inner loop, a shadow system with an H filter (SS- H) is used for the power controller to compensate for round-trip delay and uncertainty via a multiobjective (MO) optimization method. Through MO optimization, the best compromise between optimal target-SINR tracking and minimization of power consumption can be achieved. By combining these controllers in the outer loop and the inner loop, the proposed scheme can achieve better performance in comparison with other existing power control schemes in CDMA communication systems.

Published in:

IEEE Transactions on Vehicular Technology  (Volume:61 ,  Issue: 5 )