Title :
Performance of Shift Register based Frequency Hopping OFDM under Doppler spread
Author :
Oturak, A. ; Ozturk, E. ; Yanik, K.
Author_Institution :
Elektron. ve Otomasyon Bolumu, Bulent Ecevit Univ., Zonguldak, Turkey
Abstract :
In this work, the performances of Shift Register based Frequency Hopping Orthogonal Frequency Multiplexing (SR-FH-OFDM) signals over a Doppler spread flat Rayleigh channel is investigated. Besides, the frequency hopping system is compared with the conventional OFDM system in terms of Bit Error Rate (BER). In the flat Rayleigh fading channel, a Doppler effect is modeled by Jakes Channel model. Considered baseband modulation techniques are 16 level Quadrature Amplitude Modulation (QAM) and 16 level Phase Shift Keying (PSK). Numerical results show that conventional and the frequency hopping schemes have similar BER results over the considered channel.
Keywords :
Doppler effect; OFDM modulation; Rayleigh channels; error statistics; numerical analysis; phase shift keying; quadrature amplitude modulation; shift registers; signal processing; BER results; Doppler effect; Doppler spread flat Rayleigh channel; Jakes channel model; PSK; QAM; baseband modulation techniques; frequency hopping system; orthogonal frequency multiplexing; phase shift keying; quadrature amplitude modulation; shift register based frequency hopping OFDM performance; Bit error rate; Doppler effect; Frequency division multiplexing; Frequency modulation; OFDM; Rayleigh channels; Shift registers; Doppler Spread; Frequency Hopping (FH); Orthoganal Frequency Division Multiplexing (OFDM); Shift Register;
Conference_Titel :
Signal Processing and Communications Applications Conference (SIU), 2013 21st
Conference_Location :
Haspolat
Print_ISBN :
978-1-4673-5562-9
Electronic_ISBN :
978-1-4673-5561-2
DOI :
10.1109/SIU.2013.6531358
