Estimation of the Feedback Reliability for IB-DFE Receivers | Zendy

Fábio Silva | Zendy; Rui Dinis | Zendy; Paulo Montezuma | Zendy

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Estimation of the Feedback Reliability for IB-DFE Receivers

Author(s) -

Fábio Silva,

Rui Dinis,

Paulo Montezuma

Publication year - 2011

Publication title -

isrn communications and networking

Language(s) - English

Resource type - Journals

eISSN - 2090-4363

pISSN - 2090-4355

DOI - 10.5402/2011/980830

Subject(s) - cyclic prefix , sc fde , equalization (audio) , computer science , turbo , block (permutation group theory) , reliability (semiconductor) , transmission (telecommunications) , electronic engineering , broadband , wireless , wireless broadband , frequency domain , channel (broadcasting) , orthogonal frequency division multiplexing , algorithm , control theory (sociology) , telecommunications , engineering , wireless network , mathematics , power (physics) , physics , geometry , control (management) , quantum mechanics , artificial intelligence , automotive engineering , computer vision

single-carrier (SC) modulation with frequency-domain equalization (FDE) combined with iterative (turbo) FDE schemes has been shown to be suitable for cyclic-prefix (CP)-assisted block transmission within broadband wireless systems. Its excellent performance in severely time-dispersive channels, makes it a promising candidate for future broadband wireless systems. In this paper we investigated the impact of the correlation factor estimation in the performance of iterative block decision feedback equalization (IB-DFE) receivers. Since the correlation factor represents a key parameter to ensure the good performance of these receivers, reliable estimates of this factor are needed in the feedback loop. We present several methods to estimate the correlation coefficient.We also propose a technique to compensate the inaccuracy of the estimation.

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