Title :
Analog Orthogonal Multitone Signal Generation for OFDM Transceiver
Author :
Ghosh, Amlan ; Ranjan, Abhishek ; Chakrabarti, Nirmal B.
Author_Institution :
Utah Univ., Salt Lake City, UT
fDate :
March 31 2005-April 2 2005
Abstract :
This paper is concerned with design and an integrated circuit implementation of multicarrier quadrature phase generators for application in analog spectral synthesis and orthogonal frequency division multiplexing transceiver using amplitude phase shift keying using 0.18mum technology. A novel analog or sampled data based rotational quadrature oscillator has been designed for generating quadrature signals. Schemes of multicarrier generation studied include (a) a sine/cosine shaping by folding triangular waves and (b) multiple frequency generation, using regenerative frequency dividers and mixers. Simulation results and performance of different schemes of multicarrier generation are compared. These schemes show very low power consumption than typical method of multi-frequency signal synthesis using IFFT
Keywords :
OFDM modulation; amplitude shift keying; analogue integrated circuits; fast Fourier transforms; frequency dividers; integrated circuit design; mixers (circuits); oscillators; phase shift keying; radiofrequency integrated circuits; signal generators; transceivers; IFFT; OFDM transceiver; amplitude phase shift keying; analog orthogonal multitone signal generation; analog spectral synthesis; folding triangular waves; integrated circuit implementation; mixers; multicarrier quadrature phase generators; multifrequency signal synthesis; multiple frequency generation; orthogonal frequency division multiplexing transceiver; quadrature oscillator; regenerative frequency dividers; Analog integrated circuits; Application specific integrated circuits; Frequency conversion; Integrated circuit synthesis; Integrated circuit technology; OFDM; Phase shift keying; Signal generators; Signal synthesis; Transceivers;
Conference_Titel :
SoutheastCon, 2006. Proceedings of the IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
1-4244-0168-2
DOI :
10.1109/second.2006.1629318
