Title :
System Dynamics Analysis of Adaptive Modulation Problem for Rayleigh Flat-Fading Channel
Author :
Tjiam, Aijiwati ; Jiong Jin ; Zhihong Man ; Zhenwei Cao
Author_Institution :
Fac. of Sci., Eng. & Technol., Swinburne Univ. of Technol., Melbourne, VIC, Australia
Abstract :
Adaptive modulation problem is tackled in this paper from a completely new perspective using system dynamics analysis. By establishing the state-space representation of the adaptation system, a feedback controller is designed to adjust the modulation parameter so as to meet the adaptation criteria. Compared to the existing adaptation algorithms, the proposed approach yields an optimal resource allocation without pre-computation of signal to noise ratio (SNR) region boundaries while still maintaining a desirable quality of service.
Keywords :
Rayleigh channels; adaptive modulation; fading channels; quality of service; Rayleigh flat fading channel; SNR region boundaries; adaptation system; adaptive modulation problem; feedback controller; modulation parameter; optimal resource allocation; quality of service; signal to noise ratio; state-space representation; system dynamics analysis; Adaptation models; Bit error rate; Computational modeling; Equations; Mathematical model; Modulation; Signal to noise ratio; Adaptive modulatio; fading channels; feedback communication;
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/WCL.2014.050814.140093
