PSK symbol synchronization performance of ML-oriented data-aided algorithms for nonselective fading channels

Two maximum-likelihood (ML)-oriented data-aided (DA) symbol synchronization algorithms are investigated in this paper. They operate on a noisy M-PSK signal (M>2) transmitted over a slowly time-varying nonselective Rician fading channel. The first algorithm is channel-aided (CA): it makes use of a...

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Vydáno v:IEEE transactions on communications Ročník 43; číslo 2/3/4; s. 767 - 772
Hlavní autoři: Goethals, K., Moeneclaey, M.
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York, NY IEEE 01.02.1995
Institute of Electrical and Electronics Engineers
Témata:
Applied sciences
Exact sciences and technology
Maximum likelihood estimation
Phase shift keying
Rician channels
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Timing
Transmission and modulation (techniques and equipments)
Fading
Phase shift keying
Transmission channel
Receiver
Maximum likelihood
Performance
Synchronization
Algorithm
Digital transmission
ISSN:0090-6778
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Shrnutí:Two maximum-likelihood (ML)-oriented data-aided (DA) symbol synchronization algorithms are investigated in this paper. They operate on a noisy M-PSK signal (M>2) transmitted over a slowly time-varying nonselective Rician fading channel. The first algorithm is channel-aided (CA): it makes use of an estimate or the instantaneous channel gain. The second algorithm is nonchannel-aided (NCA): timing is acquired independently of the channel gain estimation. Both algorithms operate either with a known training sequence or in a decision-directed mode, and are suitable for fully digital implementation. We find that the CA algorithm yields a smaller tracking error variance than the NCA algorithm, but the difference in performance decreases with increasing carrier-to-multipath (C/M) ratio.< >
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ISSN:0090-6778
DOI:10.1109/26.380239