Blind phase noise estimation in OFDM systems by sequential Monte Carlo method
Date
2006
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Abstract
In this paper, based on a sequential Monte Carlo method, a computationally efficient algorithm is presented for estimating the residual phase noise, blindly, generated at the output the phase tracking loop employed in OFDM systems. The basic idea is to treat the transmitted symbols as "missing data" and draw samples sequentially of them based on the observed signal samples up to time t. This way, the Bayesian estimates of the phase noise is obtained through these samples, sequentially drawn, together with their importance weights. The proposed receiver structure is seen to be ideally suited for high-speed parallel implementation using VLSI technology.
Source Title
Proceedings of the 5th International Workshop on Multi-Carrier Spread-Spectrum, MC-SS 2005
Publisher
Springer
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Keywords
Bayesian estimate, Computationally efficient, Importance weights, Parallel implementations, Phase tracking loops, Receiver structure, Residual phase noise, Sequential Monte Carlo methods, Bayesian networks, Monte Carlo methods, Orthogonal frequency division multiplexing, Telecommunication systems, Phase noise
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English