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Optimization of Pilot Overhead in Communications with ARQ-Feedback.

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journal contribution
posted on 08.08.2016, 00:00 by B Smida, M Hossain, Y Zhao
In this work, we optimize the pilot overhead in communication with re-transmission and investigate the dependence of this overhead on various system parameters, e.g. fading rate, target rate and signal-to-noise ratio. We formalize the optimization and frame it in terms of throughput maximization; this leads to an accurate optimal pilot overhead closed-form expression. Results show that the optimal overhead expressions are roots of quartic polynomials. At a high-power regime they decrease with the target rate and increase with the normalized Doppler frequency, and at low-power regime they are only function of the target rate.

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INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS: © (2016) IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.

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Institute of Electrical and Electronics Engineers

Language

en_US

issn

2162-2337

Issue date

01/04/2016

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