DocumentCode :
379357
Title :
Linear models and capacity bounds for continuous phase modulation
Author :
Yu, Kevin C. ; Goldsmith, Andrea J.
Author_Institution :
Dept. of Electr. Eng., Stanford Univ., CA, USA
Volume :
2
fYear :
2002
fDate :
2002
Firstpage :
722
Abstract :
We derive upper bounds on the capacity of an additive Gaussian noise channel with continuous phase modulation (CPM). We propose an MMSE approximation to Laurent´s (1986) linear decomposition using an arbitrary number of filtered, linearly modulated pulses. Using this linear modulation structure, we derive capacity bounds for both white and colored noise channels with CPM modulation by showing the system is equivalent to a multiple access channel (MAC) with intersymbol interference (ISI). The rate sum capacity of this cooperative MAC is used for the upper bound. Numerical results are presented for a channel using CPM with both white and colored noise. The bounds show a significant gap between a channel using CPM and a channel with unconstrained modulation.
Keywords :
AWGN channels; channel capacity; continuous phase modulation; intersymbol interference; least mean squares methods; multiuser channels; AWGN channel; CPM; ISI; MAC; MMSE approximation; additive Gaussian noise channel; capacity bounds; colored noise; continuous phase modulation; cooperative MAC; intersymbol interference; linear decomposition; linear models; linearly modulated pulses; multiple access channel; rate sum capacity; unconstrained modulation channel; white noise; Additive noise; Channel capacity; Circuits; Colored noise; Continuous phase modulation; Gaussian noise; Intersymbol interference; Pulse modulation; Turbo codes; Upper bound;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Communications, 2002. ICC 2002. IEEE International Conference on
Print_ISBN :
0-7803-7400-2
Type :
conf
DOI :
10.1109/ICC.2002.996950
Filename :
996950
Link To Document :
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