International Journal of Intelligent Systems and Applications (IJISA)
IJISA Vol. 8, No. 5, 8 May 2016
Cover page and Table of Contents: PDF (size: 422KB)
Fuzzy Logic Based Modified Adaptive Modulation Implementation for Performance Enhancement in OFDM Systems
Full Text (PDF, 422KB), PP.49-54
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Author(s)
Kuldeep Singh
1,*
Index Terms
Adaptive Modulation, Bit Error Rate (BER), Coding Rate, Fuzzy Inference System (FIS), Orthogonal Frequency Division Multiplexing (OFDM), Signal to Noise Ratio (SNR)
Abstract
Adaptive modulation is one of the recent technologies used to improve future communication systems. Many adaptive modulation techniques have been developed for the improving the performance of Orthogonal Frequency Division Multiplexing (OFDM) system in terms of high data rates and error free delivery of data. But uncertain nature of wireless channel reduces the performance of OFDM system with fixed modulation techniques. In this paper, modified adaptive modulation technique has been proposed which adapts to the nature of communication channel based upon present modulation order, code rate, BER and SNR characterizing uncertain nature of communication channel by using a Fuzzy Inference System which further enhances the performance of OFDM systems in terms of high transmission data rate and error free delivery of data.
Cite This Paper
Kuldeep Singh, "Fuzzy Logic Based Modified Adaptive Modulation Implementation for Performance Enhancement in OFDM Systems", International Journal of Intelligent Systems and Applications(IJISA), Vol.8, No.5, pp.49-54, 2016. DOI:10.5815/ijisa.2016.05.07
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