Title :
SNR and BER derivation and analysis of downlink OFDM systems with noisy fading Doppler channels
Author :
Noor, Litifa ; Anpalagan, Alagan ; Kandeepan, Sithamparanathan
Author_Institution :
WINCORE Res. Lab., Ryerson Univ., Toronto, ON
Abstract :
In this paper, we investigate the SNR and BER performance of an OFDM system under imperfect synchronization which is caused due to noise, Doppler shift and frequency selective fades in the channel. An analytical expression for BER is derived assuming BPSK modulation and numerical results are presented to show the effect and extent of the above channel impairments in OFDM downlinks.
Keywords :
OFDM modulation; error statistics; fading channels; phase shift keying; radio links; synchronisation; BER derivation; BPSK modulation; SNR performance; downlink OFDM system; frequency selective fades; imperfect synchronization; noisy fading Doppler channels; orthogonal frequency division multiplexing; AWGN; Australia; Baseband; Bit error rate; Downlink; Fading; Frequency synchronization; Intersymbol interference; OFDM modulation; Performance analysis;
Conference_Titel :
Signal Processing and Its Applications, 2007. ISSPA 2007. 9th International Symposium on
Conference_Location :
Sharjah
Print_ISBN :
978-1-4244-0778-1
Electronic_ISBN :
978-1-4244-1779-8
DOI :
10.1109/ISSPA.2007.4555298
