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An optimal circular 16-QAM modulation technique for wavelet and fourier based OFDM

Abdullah, Khaizuran and Ismail, Ahmad Fadzil and Hashim, Wahidah and Hussain, Zahir (2010) An optimal circular 16-QAM modulation technique for wavelet and fourier based OFDM. In: International Conference on Computer and Communication Engineering (ICCCE 2010), 11-13 May 2010, Kuala Lumpur.

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Abstract

Abstract—A new approach of an optimal 16-QAM modulation has been introduced to be used for both Fourier and wavelet based OFDM. The comparison between circular and square 16- QAM is included. It is shown that the power consumption of circular is better than the square by 0.5359 W or -2.71 dB for the same minimum distance 2d. Simulation works for Fourier and wavelet based OFDM have been performed. In Fourier base OFDM, the circular has slightly out-performed the square when the number of subcarriers is varied from 32 to 256 at different BER values. When considering wavelet based OFDM, all wavelet families except Biorthogonal and Reverse-Biorthogonal have performed similar result for both modulation schemes. Of all Biorthogonal families, bior5.5 is the most out-performed one when using circular and square 16-QAM respectively.

Item Type: Conference or Workshop Item (Full Paper)
Additional Information: 3407/10311
Uncontrolled Keywords: Circular 16-QAM , Fourier-based OFDM , Square 16-QAM , wavelet-based OFDM
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering
Kulliyyahs/Centres/Divisions/Institutes: Kulliyyah of Engineering
Depositing User: Dr Khaizuran Abdullah
Date Deposited: 12 Feb 2012 16:07
Last Modified: 12 Feb 2012 16:08
URI: http://irep.iium.edu.my/id/eprint/10311

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