Ertas, T and Ali, F H (1997) Upper Bounds on the Free Distance for Trellis Codes Combined with CPFSK Signals. Electronics Letters, 33 (17). pp. 1438-1440. ISSN 00135194

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Abstract

It is well-known that CPM schemes themselves exhibit attractive spectral efficiencies and that combining them with a rate m/(m + 1) external trellis encoder with 2m+1-level modulation results in better power-bandwidth performance. Since the free distance is a good measure of performance, the authors construct upper bounds on the ultimately achievable free distance for trellis codes of Ungerboeck type combined with constant-envelope CPFSK signals. Some encoders achieving the constructed upper bounds are also presented.

Item Type:	Article
Schools and Departments:	School of Engineering and Informatics > Engineering and Design
Depositing User:	Falah Ali
Date Deposited:	06 Feb 2012 20:09
Last Modified:	30 Mar 2012 14:38
URI:	http://sro.sussex.ac.uk/id/eprint/24372

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