Please use this identifier to cite or link to this item: https://doi.org/10.1109/CCNC.2012.6181166
Title: Modeling, estimation and mitigation of colored timing jitter for OFDMA system
Authors: Rabbi, M.F.
Ko, C.C. 
Issue Date: 2012
Source: Rabbi, M.F.,Ko, C.C. (2012). Modeling, estimation and mitigation of colored timing jitter for OFDMA system. 2012 IEEE Consumer Communications and Networking Conference, CCNC'2012 : 792-796. ScholarBank@NUS Repository. https://doi.org/10.1109/CCNC.2012.6181166
Abstract: The use of practical oscillators, with its inherent drift due to temperature and other environmental changes, in receivers will result in clock jitter which destroys the orthogonality between subcarriers and introduces Inter Carrier Interference (ICI). The problem will become more severe in high speed applications as Doppler induced Carrier Frequency Offset (CFO) also contributes more ICI. To alleviate the problem we develop a colored clock jitter based on practical oscillators as used in receivers. Then a joint tracking based estimation and mitigation algorithm is proposed to compensate effect of clock jitter. Specifically, using the first order variation of the phase jitter over multiple OFDMA symbols, we formulate a new objective function and an iterative jitter tracking scheme is developed for more accurate synchronization. © 2012 IEEE.
Source Title: 2012 IEEE Consumer Communications and Networking Conference, CCNC'2012
URI: http://scholarbank.nus.edu.sg/handle/10635/71001
ISBN: 9781457720710
DOI: 10.1109/CCNC.2012.6181166
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