Title :
Performance of adaptive fuzzy bandwidth expansion scheme for OFDM communication systems
Author :
Yung-Fa Huang ; Tan-Hsu Tan ; Shing-Hong Liu ; Rung-Ching Chen ; Chia-Hsin Cheng ; Che-Hao Li
Author_Institution :
Dept. of Inf. & Commun. Eng., Chaoyang Univ. of Technol., Taichung, Taiwan
Abstract :
In this paper, both effective bandwidth extension and distributed issues are investigated to improve the energy efficiency for the orthogonal frequency division multiplexing (OFDM) wireless communication systems. A Fuzzy based energy efficient bandwidth expansion (FBEEBE) scheme is proposed to fast infer the bandwidth extension factors (BEFs) for users based on fuzzy inference systems. The proposed fuzzy inference system can infer the BEFs from the two inputs of SNR and bandwidth requirement of users. Simulation results show that the proposed FBEEBE can improve the energy efficiency comparing to that of same bandwidth extension (SBE) scheme.
Keywords :
OFDM modulation; energy conservation; fuzzy reasoning; telecommunication power management; wireless channels; BEF; FBEEBE; OFDM communication systems; SBE; adaptive fuzzy bandwidth expansion scheme; bandwidth extension factors; energy efficiency; fuzzy based energy efficient bandwidth expansion; fuzzy inference systems; orthogonal frequency division multiplexing; same bandwidth extension; wireless communication systems; Bandwidth; Communication systems; Energy consumption; Energy efficiency; Fuzzy logic; OFDM; Signal to noise ratio; Fuzzy bandwidth expansion; Fuzzy inference systems; OFDM; energy efficiency; energy efficient bandwidth expansion;
Conference_Titel :
Systems, Man and Cybernetics (SMC), 2014 IEEE International Conference on
Conference_Location :
San Diego, CA
DOI :
10.1109/SMC.2014.6974184
