Title :
OFDM/VSF-CDMA for DVB-H communications
Author :
Moustafa, Mohamed M A
Author_Institution :
Akhbar El Yom Acad., Commun. & Electron. Eng., Egypt
Abstract :
Digital Video Broadcasting for Handheld Terminals (DVB-H) standard uses Orthogonal Frequency-Division Multiplexing (OFDM) technique which exhibits some major drawbacks, namely; the sensitivity to Doppler shift, the sensitivity to frequency synchronization and the high Peak to Average Power Ratio (PAPR). This paper proposes using OFDM/Variable Spreading Factor (VSF)-Code Division Multiple Access (CDMA) for DVB-H transmission. Simulation results show a Bit Error Rate (BER) performance enhancement of the proposal over the OFDM based traditional transmission. The drawbacks of the proposal are the requirements for a higher RF bandwidth and the relative higher complexity overhead.
Keywords :
Doppler shift; OFDM modulation; code division multiple access; communication complexity; digital video broadcasting; error statistics; BER; DVB-H communications; DVB-H transmission; Doppler shift; OFDM; VSF; bit error rate; code division multiple access; complexity overhead; digital video broadcasting; handheld terminals; orthogonal frequency-division multiplexing technique; peak to average power ratio; variable spreading factor; Bit error rate; Digital video broadcasting; Doppler shift; Frequency division multiplexing; Frequency synchronization; Multiaccess communication; OFDM; Peak to average power ratio; Proposals; Radio frequency; CDMA; DVB; DVB-H; OFDM; VSF;
Conference_Titel :
Advanced Communication Technology (ICACT), 2010 The 12th International Conference on
Conference_Location :
Phoenix Park
Print_ISBN :
978-1-4244-5427-3
