Performance of Shift Register Based Frequency Hopping OFDM Under Doppler Spread
Ahmet Oturak, Ertan Ozturk, Koray Yanik, None None
proceeding (Uluslararası, Hakemli) | Yazar(lar): Ahmet Oturak, Ertan Ozturk, Koray Yanik, None None | Yıl: 2013 | Dergi/Kurum: 2013 21ST SIGNAL PROCESSING AND COMMUNICATIONS APPLICATIONS CONFERENCE (SIU) | İndeks: WOS.ISTP | Anahtar Kelimeler: Shift Register, Frequency Hopping (FH), Orthoganal Frequency Division Multip
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.