Title :
MSKRC quadrature-overlapped modulation and its performance analysis
Author :
Chen, X.H. ; Oksman, J.
Author_Institution :
Telecommun. Lab., Oulu Univ., Finland
Abstract :
A bandwidth efficient quadrature-overlapped modulation, MSK raised cosine (MSKRC) modulation, is introduced. Its power spectral density (PSD) is the product of PSDs of MSK and quadrature overlapping raised cosine (QORC) signals. The PSD main lobe of the MSKRC signal is the same as that of the MSK signal but the PSD sidelobes of the MSKRC signal diminish approximately as fast as 1/f10, much faster than those of OQPSK, MSK and QORC signals (with 1/f2, 1/f4 and 1/f6, respectively). The intersymbol interference (ISI) performance for the MSKRC modulation system is analyzed. The analysis reveals that the MSKRC signal produces a lower ISI level than other reported modulated signals
Keywords :
digital radio systems; interference suppression; intersymbol interference; minimum shift keying; spectral analysis; ISI; MSK raised cosine modulation; MSKRC quadrature-overlapped modulation; PSD; QORC; bandwidth efficient quadrature-overlapped modulation; intersymbol interference; main lobe; performance analysis; power spectral density; quadrature overlapping raised cosine; sidelobes; Bandwidth; Demodulation; Frequency; Intersymbol interference; Performance analysis; Phase modulation; Pulse modulation; Pulse shaping methods; Quadrature phase shift keying; Signal analysis;
Conference_Titel :
Personal, Indoor and Mobile Radio Communications, 1992. Proceedings, PIMRC '92., Third IEEE International Symposium on
Conference_Location :
Boston, MA
Print_ISBN :
0-7803-0841-7
DOI :
10.1109/PIMRC.1992.279861
