Title
Binary Continuous Phase Modulations Robust to a Modulation Index Mismatch
Abstract
We consider binary continuous phase modulation (CPM) signals used in some recent low-cost and low-power consumption telecommunications standard. When these signals are generated through a low-cost transmitter, the real modulation index can end up being quite different from the nominal value employed at the receiver and a significant performance degradation is observed unless proper techniques for the estimation and compensation are employed. For this reason, we design new binary schemes with a much higher robustness. They are based on the concatenation of a suitable precoder with binary input and a ternary CPM format. The result is a family of CPM formats whose phase state is constrained to follow a specific evolution. Two of these precoders are considered. We will discuss many aspects related to these schemes, such as the power spectral density, the spectral efficiency, simplified detection, the minimum distance, and the uncoded performance. The adopted precoders do not change the recursive nature of CPM schemes. So these schemes are still suited for serial concatenation, through a pseudo-random interleaver, with an outer channel encoder.
Year
DOI
Venue
2015
10.1109/TCOMM.2015.2478819
IEEE Trans. Communications
Keywords
Field
DocType
Modulation,Receivers,Bandwidth,Robustness,Transmitters,Detectors,Approximation methods
Transmitter,Modulation index,Mathematical optimization,Continuous phase modulation,Algorithm,Electronic engineering,Robustness (computer science),Concatenation,Spectral efficiency,Mathematics,Real versus nominal value,Modulation (music)
Journal
Volume
Issue
ISSN
63
11
0090-6778
Citations 
PageRank 
References 
2
0.40
16
Authors
4
Name
Order
Citations
PageRank
Malek Messai1205.01
Giulio Colavolpe280168.60
Karine Amis37517.77
Frédéric Guilloud4348.66