OFDM for Wireless Multimedia Communications
OFDM for Wireless Multimedia Communications
A WFMT transmitter for cable TV applications
EHAC'06 Proceedings of the 5th WSEAS International Conference on Electronics, Hardware, Wireless and Optical Communications
Peak-to-average power ratio in WFMT system
AIC'06 Proceedings of the 6th WSEAS International Conference on Applied Informatics and Communications
An overview of peak-to-average power ratio reduction techniques for multicarrier transmission
IEEE Wireless Communications
Filtered multitone modulation for very high-speed digital subscriber lines
IEEE Journal on Selected Areas in Communications
A low-complexity PAR reduction method for WFMT System
ICCOM'07 Proceedings of the 11th Conference on 11th WSEAS International Conference on Communications - Volume 11
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This paper discusses the performance of the Satellite Downlink Transmitter that uses a Wavelet based Filtered Multi-Tone (WFMT) modulation. The novel WFMT modulation was proposed for improving characteristics of OFDM multicarrier systems but also can be successfully used in satellite communications. In this paper, we discuss the advantages of WFMT modulation in comparison with OFDM so as low sensitivity to narrowband RF interference and lower Peak-to-Average Power Ratio. It is shown that modern GaAs Solid-State Power Amplifiers are well suited for transmission of multicarrier signals. An effect of non-linear distortion on power added efficiency (PAE) of the RF Power Amplifier is discussed. Effect of clipping of WFMT signal on the error performance is described. It is shown that error correction block codes can significantly improve PAR characteristics of the communication system. The Power Efficiency of WFMT Satellite Transmitter is significantly higher that in case of OFDM.