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This paper proposes a novel iterative channel estimator for orthogonal wavelet packet modulation (OWPM) systems over frequency-selective fading channels. The channel estimation algorithm herein designed introduces linear interpolation to compensate the original value offered by expectation-maximization (EM) algorithm for iterative step. With the utilization of the coherence among both subcarriers...
Orthogonal wavelet packet modulation (OWPM) is a potential technique for achieving high bit rates required wireless access. Effective channel estimation can supply channel state information (CSI) at the receiver, the knowledge of which OWPM system performance relies on. The objective of this paper is to introduce an innovative channel estimation method with unequal interval pilots for OWPM system...
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