Timing, Carrier, and Frame Synchronization of Burst-Mode CPM

In this paper, we propose a complete synchronization algorithm for continuous phase modulation (CPM) signals in burst-mode transmission over additive white Gaussian noise (AWGN) channels. The timing and carrier recovery are performed through a data-aided (DA) maximum likelihood algorithm, which join...

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Bibliographic Details
Published in:IEEE transactions on communications 2013-12, Vol.61 (12), p.5125-5138
Main Authors: Hosseini, Ehsan, Perrins, Erik
Format: Article
Language:English
Subjects:
Applied sciences
Continuous phase modulation
Detection, estimation, filtering, equalization, prediction
estimation theory
Exact sciences and technology
Frequency estimation
Information, signal and communications theory
Joints
Maximum likelihood estimation
Modulation, demodulation
Receivers
Signal and communications theory
Signal, noise
Switching and signalling
Synchronization
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
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Summary:In this paper, we propose a complete synchronization algorithm for continuous phase modulation (CPM) signals in burst-mode transmission over additive white Gaussian noise (AWGN) channels. The timing and carrier recovery are performed through a data-aided (DA) maximum likelihood algorithm, which jointly estimates symbol timing, carrier phase, and frequency offsets based on an optimized synchronization preamble. Our algorithm estimates the frequency offset via a one-dimensional grid search, after which symbol timing and carrier phase are computed via simple closed-form expressions. The mean-square error (MSE) of the algorithm's estimates reveals that it performs very close to the theoretical Cramer-Rao bound (CRB) for various CPMs at signal-to-noise ratios (SNRs) as low as 0 dB. Furthermore, we present a frame synchronization algorithm that detects the arrival of bursts and estimates the start-of-signal. We simulate the performance of the frame synchronization algorithm along with the timing and carrier recovery algorithm. The bit error rate results demonstrate near ideal synchronization performance for low SNRs and short preambles.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2013.111613.130667