Performance analysis of MSK and MSK-OFDM in Nakagami-m channel

Author

Din, C. Mohd ; Mohamad, R. ; Mansor, W.

Author_Institution

Fac. of Electr. Eng., Univ. Teknol. Mara, Shah Alam, Malaysia

fYear

2011

fDate

4-7 Dec. 2011

Firstpage

549

Lastpage

552

Abstract

This paper investigates the BER performance of MSK-OFDM in Nakagami-m channel model by considering ideal MSK. The performance comparison between MSK and MSK-OFDM has been evaluated. FFT size, n of 128, 256 and 512 sub-carriers was used and zero padded was chosen instead of cyclic prefix as a guard band at the shape factor m = 1 based on WiMAX specifications. The simulation results have shown that using n=128, the MSK-OFDM provided the best performance compared to other FFT points at high value of EbNo but n=256 and 512 give better BER performance at low EbNo. Zero padded could not resolve multipath effect efficiently which made BER to be saturated when EbNo was above 15 dB.

Keywords

Nakagami channels; OFDM modulation; error statistics; fast Fourier transforms; minimum shift keying; BER performance; FFT; MSK-OFDM; Nakagami-m channel model; WiMax specifications; cyclic prefix; Bit error rate; Channel models; Fading; Nakagami distribution; OFDM; Simulation; Transmitters; MSK-OFDM; Minimum Shift Keying; Nakagami-m channel; Ultra-Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer Applications and Industrial Electronics (ICCAIE), 2011 IEEE International Conference on

Conference_Location

Penang

Print_ISBN

978-1-4577-2058-1

Type

conf

DOI

10.1109/ICCAIE.2011.6162195

Filename

6162195