DocumentCode :
1564744
Title :
Design of spectrally-efficient continuous phase modulations
Author :
Barbieri, Alan ; Fertonani, Dario ; Colavolpe, Giulio
Author_Institution :
Dipt. di Ing. dell´´Inf., Univ. di Parma, Parma
fYear :
2008
Firstpage :
1
Lastpage :
5
Abstract :
We investigate the spectral efficiency of continuous phase modulations (CPMs). To this end, we need an effective bandwidth definition for a CPM signal, whose power spectral density has in principle an infinite support. The definition we adopt is based on the spacing between adjacent carriers in a frequency division multiplexed CPM system. We consider the inter-channel interference, that depends on the channel spacing, and we evaluate the spectral efficiency achievable by a single-user receiver in the considered multi-channel scenario. We then optimize the channel spacing with the aim of maximizing the spectral efficiency, showing that impressive improvements with respect to the spectral efficiency achieved without optimizing the channel spacing can be achieved.
Keywords :
adjacent channel interference; channel spacing; continuous phase modulation; frequency division multiplexing; channel spacing; frequency division multiplexed CPM system; inter-channel interference; multi-channel scenario; power spectral density; spectrally-efficient continuous phase modulations; AWGN; Bandwidth; Bit rate; Channel spacing; Continuous phase modulation; Frequency division multiplexing; Information rates; Interchannel interference; Q factor; Robustness;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing for Space Communications, 2008. SPSC 2008. 10th International Workshop on
Conference_Location :
Rhodes Island
Print_ISBN :
978-1-4244-2572-3
Electronic_ISBN :
978-1-4244-2573-0
Type :
conf
DOI :
10.1109/SPSC.2008.4686710
Filename :
4686710
Link To Document :
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