Naslov
Residual Block Error Rate Prediction for IR HARQ Protocol

Autori
Hamza, Mirza ; Lipovac, Adriana ; Lipovac, Vladimir

Izvornik
Tehnički vjesnik : znanstveno-stručni časopis tehničkih fakulteta Sveučilišta u Osijeku (1330-3651) 27 (2020), 4; 1071-1076

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
BER ; BLER ; HARQ ; OFDM

Sažetak
In this paper, we derive a simple prediction of the Long Term Evolution (LTE) physical and Medium Access Control (MAC) layer peak transmission performance – the irreducible Block Error Rate (BLER) that determines the Hybrid Automatic Repeat Request (HARQ) residual channel available to higher-layer protocols. With this regard, the general pre-HARQ BLER prediction is developed for the redundancy version 0 (RV0) codeword transmission, as a function of the Bit Error Rate BER), considering the cyclic prefix protection against inter-symbol interference sufficient to prevent long error bursts. This implies only sporadic bit error occurrences, exhibiting moderate mutual interdependence that we modeled considering erroneous bits within a data block as a sample without replacement and consequently describing it with the hypergeometric rather than common binomial distribution. The HARQ BLER prediction model is validated by both problem- specific Monte-Carlo simulations and industry- standard LTE software simulation tool, specifically under LTE FDD downlink channel conditions, as the test results exhibit excellent matching with the residual BLER prediction.

Izvorni jezik
Engleski

Znanstvena područja
Elektrotehnika, Računarstvo

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