Author_Institution :
Telecommun. Eng. Res. Sch. of Inf. Sci. & Eng., Australian Nat. Univ., Canberra, ACT, Australia
Abstract :
We study commonalities of new bandwidth efficient and power efficient quadrature-quadrature phase shift keying (Q2PSK), constant envelope Q2PSK (CEQ2PSK), rotative QPSK (RQPSK), frequency and phase shift keying (FPSK), expurgated FPSK (E-FPSK), and the well-known orthogonal frequency division multiplexing (OFDM) (or multicarrier modulation) and L-orthogonal (LO) signaling on AWGN channels. “Identical” systems are defined as systems that have the same bit error rate (BER) versus the bit energy to noise ratio function and the same power spectral density. The results show that: (a) Q2PSK, FPSK, and OFDM are “identical”, and (b) CEQ2PSK, E4-FPSK and LO are “identical”. Also, a mistake in an article by Fleisher and Qu (see IEEE J. Select. Areas Commun., vol.10, no.8, p.1243-1253, 1992) is corrected
Keywords :
Gaussian channels; error statistics; frequency division multiplexing; frequency shift keying; quadrature phase shift keying; spectral analysis; AWGN channels; BER; CEQ2PSK; E-FPSK; FPSK; L-orthogonal signaling; OFDM; Q2PSK; RQPSK; bandwidth efficient modulation; bit energy to noise ratio function; bit error rate; constant envelope Q2PSK; expurgated FPSK; frequency and phase shift keying; identical systems; modulation techniques; multicarrier modulation; orthogonal frequency division multiplexing; power efficient modulation; power spectral density; quadrature-quadrature phase shift keying; rotative QPSK; AWGN channels; Additive white noise; Bandwidth; Bit error rate; Frequency shift keying; Gaussian noise; OFDM modulation; Phase modulation; Phase shift keying; Quadrature phase shift keying;
