Bernhard Etzlinger, Henk Wymeersch, Andreas Springer,
"Cooperative Synchronization in Wireless Networks"
, in IEEE Transactions on Signal Processing, Vol. 62, Nummer 11, Seite(n) 2837-2849, 2014, ISSN: 1053-587X
Original Titel:
Cooperative Synchronization in Wireless Networks
Sprache des Titels:
Englisch
Original Kurzfassung:
Synchronization is a key functionality in wireless networks, enabling a wide variety of services. We consider a Bayesian inference framework whereby network nodes can achieve phase and skew synchronization in a fully distributed way. In particular, under the assumption of Gaussian measurement noise, we derive two message passing methods (belief propagation and mean field), analyze their convergence behavior, and perform a qualitative and quantitative comparison with a number of competing algorithms. We also show that both methods can be applied in networks with and without master nodes. Our performance results are complemented by, and compared with, the relevant Bayesian Cramér-Rao bounds.
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