DocumentCode
1266612
Title
Comments on spectral efficiency of VMSK
Author
Tomazic, Saso
Author_Institution
Fac. of Electr. Eng., Ljubljana Univ., Slovenia
Volume
48
Issue
1
fYear
2002
fDate
3/1/2002 12:00:00 AM
Firstpage
61
Lastpage
62
Abstract
This article demonstrates that no ultra narrow band modulation (UNBM) method, which includes very minimum shift keying (VMSK) and VPSK, can have substantially greater efficiency than conventional methods, such as quadrature amplitude modulation (QAM), in transmission in the same frequency band.
Keywords
minimum shift keying; quadrature amplitude modulation; spectral analysis; Nyquist´s criteria; QAM; UNBM method; UNBM methods; VMSK; VPSK; frequency band; quadrature amplitude modulation; sampling theorem; signal-to-noise ratio; spectral efficiency; ultra narrow band modulation; very minimum shift keying; Additive white noise; Amplitude modulation; Bandwidth; Digital modulation; Frequency conversion; Frequency shift keying; Internet; Narrowband; Propagation losses; Quadrature amplitude modulation;
fLanguage
English
Journal_Title
Broadcasting, IEEE Transactions on
Publisher
ieee
ISSN
0018-9316
Type
jour
DOI
10.1109/11.992858
Filename
992858
Link To Document