Title :
Smooth phase interpolated modulations for nonlinear channels
Author_Institution :
Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA
fDate :
29 Nov.-3 Dec. 2004
Abstract :
A constant envelope modulation technique called the smooth phase interpolated keying (SPIK) is investigated. The phase values of the symbols are computed to obtain a smooth phase function. A method to efficiently compute the phase function is described. An optimal receiver structure is outlined, and a near-optimal low complexity version is described. The bit error rate (BER) performance of SPIK is characterized analytically. It is observed that SPIK provides BER performance close to ideal QPSK, 8-PSK and 16-PSK constellations while providing better spectral and BER performance than enhanced Feher QPSK (EFQPSK).
Keywords :
continuous phase modulation; error statistics; interpolation; phase shift keying; 16-PSK; 8-PSK; BER; CPM; M-PSK; QPSK; SPIK; bit error rate; constant envelope modulation technique; continuous phase modulation; nonlinear channels; optimal receiver structure; smooth phase function; smooth phase interpolated modulation; symbol phase values; Bandwidth; Bit error rate; Constellation diagram; Interpolation; Performance analysis; Phase modulation; Phase shift keying; Pulse amplifiers; Quadrature phase shift keying; Signal generators;
Conference_Titel :
Global Telecommunications Conference, 2004. GLOBECOM '04. IEEE
Print_ISBN :
0-7803-8794-5
DOI :
10.1109/GLOCOM.2004.1377903
