Auto-tuning Fuzzy Power Control for Multi-rate WCDMA Systems

Wu, Jiun-Ming; Jaing, Ching-Huei; Pan, Ching-Huang; Chen, Chun-Chyuan

doi:10.1109/icicic.2007.188

Second International Conference on Innovative Computing, Informatio and Control (ICICIC 2007) 2007

DOI: 10.1109/icicic.2007.188

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Auto-tuning Fuzzy Power Control for Multi-rate WCDMA Systems

Jiun-Ming Wu

Ching-Huei Jaing

Ching-Huang Pan

et al.

Abstract: Abstract

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A new outer loop power control algorithm based on fuzzy control in cdma2000

Qin

Tang

2009

2009 IEEE International Conference on Network Infrastructure and Digital Content

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In this paper, a new outer loop power control algorithm based on continuous fuzzy control is proposed. The output value, controlled by the fuzzy rules and the two input values which are processed with fuzzy method, is adopted as the adjustment step-size of SIRtar in the inner loop power control. The algorithm can calculate the best adjustment step-size to overcome the robust phenomenon of traditional algorithms to a large extent. Experimental results indicate that the algorithm provides the optimal SIRtar suiting the transient wireless environment with the ensured QoS as precondition. As a result, it can achieve the best network performance by reducing the transmitter power and interference as much as possible.

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A new outer loop power control algorithm based on fuzzy control in cdma2000

Qin

Tang

2009

2009 IEEE International Conference on Network Infrastructure and Digital Content

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Predictive Linear Quadratic Power Control Algorithm in WCDMA Wireless Cellular Networks

Liu

2008

2008 4th International Conference on Wireless Communications, Networking and Mobile Computing

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Rake recei ver MRC Li nk gai n Power cont r ol Sl ow f adi ng channel p ∆ ± Tp Integrator user1 user1 userN userN Base st at i on Mobi l e t er m i nal Channel par am et er s (dB) Tr ansm i tt ed power (dB) + + Abstract-Combining the approaches of optimal control theory and linear prediction technique, the user's transmitting powers are minimized and the system capacity is maximized with the quality of services (QoS) being satisfied simultaneously for all mobile terminals. A linear quadratic form of power control problem in wideband code division multiple access (WCDMA) systems is established and the fading channel path-gain is predicted. Simulation results show graphically that the proposed predictive linear quadratic power control (PLQ-PC) algorithm converges faster no less than 7 percents and makes the system support about 1.2 times users compared with those obtained by auto-tuning fuzzy power control (ATF-PC) and signalinterference ratio based power control (SIR-PC) algorithms, respectively.

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Auto-tuning Fuzzy Power Control for Multi-rate WCDMA Systems

Abstract: Abstract

Cited by 2 publications

References 7 publications

A new outer loop power control algorithm based on fuzzy control in cdma2000

A new outer loop power control algorithm based on fuzzy control in cdma2000

Predictive Linear Quadratic Power Control Algorithm in WCDMA Wireless Cellular Networks

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