By Topic

Reverse link power control of DS-CDMA on multi-path fading and additive white Gaussian noise by using fuzzy and neuro-fuzzy controller

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
$31 $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

2 Author(s)
Wongsathan, C. ; Dept. of Electr. Eng., North-Chiang Mai Univ., Chiang Mai ; Wansom, C.

This paper presents the direct sequence-code division multiple access (DS-CDMA) model and the algorithm to control the reverse link closed loop power of DS-CDMA cellular system by using the fuzzy controller (FC) and neuro-fuzzy controller (NFC). The controllerpsilas parameters of these methods are selected and adjusted by genetic algorithms (GAs). The controllerpsilas inputs are the error between the signal strength of each mobile station and signal strength target (P*) at base station, and the difference of this error. The controllerpsilas output is the increasing or decreasing power. Both controllers were then tested to control DS-CDMA model which designed both the synchronous and asynchronous transmission. In the test, M and Gold sequence code used in spread spectrum were utilized under multi-path fading with AWGN. The experimental results by comparing the operation characteristic of the designed and implement FC and NFC show that the NFC gives the power level closed to the target and a lower outage probability.

Published in:

Control, Automation and Systems, 2008. ICCAS 2008. International Conference on

Date of Conference:

14-17 Oct. 2008