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Channel, phase noise, and frequency offset in OFDM systems: Joint estimation, data detection, and hybrid Cramr-Rao lower bound

Salim, Omar Hazim; Nasir, Ali; Mehrpouyan, Hani; Xiang, Wei; Durrani, Salman; Kennedy, Rodney


Oscillator phase noise (PHN) and carrier frequency offset (CFO) can adversely impact the performance of orthogonal frequency division multiplexing (OFDM) systems, since they can result in inter carrier interference and rotation of the signal constellation. In this paper, we propose an expectation conditional maximization (ECM) based algorithm for joint estimation of channel, PHN, and CFO in OFDM systems. We present the signal model for the estimation problem and derive the hybrid Cramér-Rao...[Show more]

CollectionsANU Research Publications
Date published: 2014
Type: Journal article
Source: IEEE Transactions on Communications
DOI: 10.1109/TCOMM.2014.2345056


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