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Rotative quadrature phase-shift keying |
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| Authors: | Liu J. Kim J. Kwatra S.C. Stevens G.H. |
| Affiliation: | Toledo Univ., OH, USA; |
| Abstract: | A rotative quadrature phase-shift keying (RQPSK) modulation scheme is proposed. By rotating the QPSK signal constellation by pi /2 either clockwise or anticlockwise during a symbol duration, the conventional QPSK scheme can be modified to transmit 3 bits per symbol to achieve both power and bandwidth efficiency.< |
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