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On a Novel Predictive Closed Loop Power Control for DS-CDMA Systems

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3 Author(s)
Po-Hao Chang ; Dept. of Electr. Eng., Nat. Dong Hwa Univ., Hualien ; Yi-Cheng Hor ; Jun-Ren Chen

In real life the radio signals are subject to Rayleigh fading (fast fading) and interference. Power control is needed to compensate for these effects. This paper proposes a predictive inverse fast power control algorithm (PI-PCA) in DS-CDMA systems. Replacing the conventional power control schemes, this power control scheme controls the mobile's transmitted power based on the prediction of the fading channel attenuation. Furthermore, the performance of our proposed power control scheme is compared with those of the conventional power control schemes. According to the results, we observe that our PI-PCA can maintain the SIR around the target value

Published in:

Electro/information Technology, 2006 IEEE International Conference on

Date of Conference:

7-10 May 2006