Apparatus and method of reconstructing amplitude-clipped signal

Details Apparatus and method of reconstructing amplitude-clipped signal Apparatus and method of reconstructing amplitude-clipped signal

2011-03-15

2011-03-15

Pham, Chi H. (Department: 2471)

Multiplex communications

Generalized orthogonal or special mathematical techniques

Particular set of orthogonal functions

C370S210000, C370S310000, C714S746000, C375S345000, C455S101000

Reexamination Certificate

active

07907511

ABSTRACT:
A wireless data transmission method and apparatus are provided for compensating a distortion due to a clipped amplitude when an amplitude of a signal is clipped to reduce a peak to average power ratio (PAPR) in a wireless communication system using an orthogonal frequency division multiplexing (OFDM) scheme and a transmit diversity method using an orthogonal coding. The wireless data transmission apparatus includes a coding unit which Space-Time block codes a first data stream into a plurality of second data streams, the plurality of second data streams being orthogonal to each other; an inverse Fourier transform unit which performs an inverse Fourier transform of each of the Space-Time block coded second data stream and generates a plurality of time domain signals; and a plurality of amplitude clipping units which clips an amplitude of each of the plurality of generated time domain signals.

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