Title :
Bayesian parameter estimation for time and frequency synchronization
Author :
Bromberg, Matthew C. ; Progri, Ilir F.
fDate :
April 28-30, 2005
Abstract :
Bayesian estimation techniques are applied to the problem of time and frequency offset estimation for modern communications systems. The estimation technique employs Markov chain Monte Carlo (MCMC) to estimate unknown system parameters for a receiver with multiple antennae. A global parameter search is used to initialize time and frequency offsets. Tracking is achieved using a Metropolis-Hastings proposal distribution. The technique enables the design of a high performance receiver capable of synchronizing and tracking in the presence of cochannel interference and multipath.
Keywords :
Bayes methods; Markov processes; Monte Carlo methods; antenna arrays; channel estimation; cochannel interference; multipath channels; radio receivers; receiving antennas; synchronisation; tracking; Bayesian parameter estimation; MCMC; Markov chain Monte Carlo estimation; Metropolis-Hastings distribution; cochannel interference; frequency synchronization; multipath channel; multiple antennae; receiver tracking; time synchronization; Bayesian methods; Delay estimation; Frequency division multiplexing; Frequency estimation; Frequency synchronization; Monte Carlo methods; OFDM; Parameter estimation; Receiving antennas; State estimation;
Conference_Titel :
Wireless Telecommunications Symposium, 2005
Print_ISBN :
0-7803-8856-9
DOI :
10.1109/WTS.2005.1524776