Performance analysis of Rayleigh fading channels in GI-Less OFDM system using QAM modulations

Author

Ismail, M.Z. ; Ali, A.H.

Author_Institution

Commun. Technol. Sect., Univ. Kuala Lumpur British Malaysian Inst., Kuala Lumpur, Malaysia

fYear

2014

fDate

27-29 Aug. 2014

Firstpage

231

Lastpage

234

Abstract

In the paper, the Bit Error Rate (BER) performance for variation of Quadrature Amplitude Modulation (QAM) techniques and Guard Interval-Less (GI-Less) OFDM over Rayleigh fading are compared and analysed. In addition the simulations of OFDM signals are implemented with Rayleigh faded signals to investigate the effect of channel fading and to obtain optimum value of BER and Signal to noise ratio (SNR) by applying Zero-Forcing (ZF) and Maximum Mean Square Error (MMSE) techniques. The simulation results achieved BER performance of 10"³ at SNR of 25dB.

Keywords

OFDM modulation; Rayleigh channels; error statistics; quadrature amplitude modulation; signal processing; BER performance; GI-less OFDM system; MMSE; OFDM signal simulation; QAM modulations; Rayleigh fading channels; SNR; ZF; bit error rate; guard interval-less OFDM; maximum mean square error techniques; performance analysis; quadrature amplitude modulation; signal to noise ratio; zero-forcing; Bit error rate; Equalizers; Fading; OFDM; Quadrature amplitude modulation; Signal to noise ratio; Fading Model; GI Less OFDM; MMSE; QAM; ZF;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering Technology and Technopreneuship (ICE2T), 2014 4th International Conference on

Conference_Location

Kuala Lumpur

Type

conf

DOI

10.1109/ICE2T.2014.7006253

Filename

7006253