Finite Block-length Analysis of the Incremental Redundancy HARQ
Artikel i vetenskaplig tidskrift, 2014

This letter studies the power-limited throughput of a communication system utilizing incremental redundancy (INR) hybrid automatic repeat request (HARQ). We use some recent results on the achievable rates of finite-length codes to analyze the system performance. With codewords of finite length, we derive closed-form expressions for the outage probabilities of INR HARQ and study the throughput in the cases with variable-length coding. Moreover, we evaluate the effect of feedback delay on the throughput and derive sufficient conditions for the usefulness of the HARQ protocols, in terms of power-limited throughput. The results show that, for a large range of HARQ feedback delays, the throughput is increased by finite-length coding INR HARQ, if the sub-codeword lengths are properly adapted.

Författare

Behrooz Makki

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Tommy Svensson

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Michele Zorzi

Università di Padova

IEEE Wireless Communications Letters

2162-2337 (ISSN)

Vol. 3 5 529-532 6888474

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Telekommunikation

Kommunikationssystem

Signalbehandling

DOI

10.1109/LWC.2014.2353059

Mer information

Senast uppdaterat

2018-05-09