Performance analysis and modelling of single-step power control in finite state Markov channel under different feedback channels

• Published in: IEEE transactions on communications Vol. 58; no. 4; pp. 1280 - 1290
• Main Authors: CHANG, Min-Kuan, LEE, Shi-Yong, CHIEN, Chien-Hao, KUO, Chih-Hung
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.04.2010; Institute of Electrical and Electronics Engineers; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Applied sciences; Attenuation; Bit error rate; Channels; Commands; Control systems; Control theory; Delay; Detection, estimation, filtering, equalization, prediction; Error correction; Exact sciences and technology; Fading; Feedback; FSMC; Information, signal and communications theory; Interference; Mathematical analysis; PCE model; Performance analysis; Power control; Signal and communications theory; Signal, noise; single-step power control; SSPC model; State feedback; Telecommunications and information theory; Wireless networks; Performance evaluation; FSMC; Probabilistic approach; Bit error rate; Wireless telecommunication; Signal estimation; Markov model; Modeling; Accuracy; SSPC model; Simulation; Power control; PCE model; single-step power control; Delay time; Error correction; Signal distortion; Signal to noise ratio
• ISSN: 0090-6778; 1558-0857
• DOI: 10.1109/TCOMM.2010.04.070381

We investigate a commonly used power control scheme called single-step power control (SSPC) in finite state Markov channel (FSMC). The performance of SSPC is highly affected by two major factors, the power control error (PCE) and the imperfect feedback of the SSPC commands. In the first part of this work, we aim at modelling the behavior of PCE in FSMC. Based on the proposed PCE model, BER and PER performance are evaluated. Simulation results have shown the validity of the proposed PCE model, derived PER and BER in this work. In the second part of this work, SSPC models under different scenarios are established in order to understand the impact of the imperfect feedback on SSPC commands and to obtain the interactions between SSPC and FSMC. We consider four scenarios, perfect feedback, command error, command loss and command delay. The associated transitional probabilities of each scenario are given. Extensive simulation has shown the accuracy of the proposed SSPC models in these four scenarios.