Blind Feedforward Timing Estimation for Constant-Modulus Signalling in Time-Varying Fading ChannelsReportar como inadecuado




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Journal of Electrical and Computer EngineeringVolume 2010 2010, Article ID 620789, 4 pages

Research ArticleDepartment of Electrical Engineering, Indian Institute of Technology, Delhi, New Delhi 110015, India

Received 17 October 2009; Accepted 11 January 2010

Academic Editor: Martin Haardt

Copyright © 2010 Shankar Prakriya. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A simple low-complexity algorithm is proposed for blind feedforward symbol timing estimation in time-varying flat-fading channels, assuming constant modulussignalling. Its important properties are brought out using asymptotic analysis. It is shown that at high Signal-to-Noise Ratios SNRs, the algorithm results in a timing estimate with negligible bias. It also has a Mean-Square-Error MSE performance that is superior for short data records and small roll-off factors to that of the Square-Law-SQL- and the CycloStationarity-CS- based algorithms available to date. Computer simulations are presented to demonstrate effectiveness of the algorithm.





Autor: Shankar Prakriya

Fuente: https://www.hindawi.com/



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