Rate Allocation and Adaptation for Incremental Redundancy Truncated HARQ - CentraleSupélec Access content directly
Journal Articles IEEE Transactions on Communications Year : 2013

Rate Allocation and Adaptation for Incremental Redundancy Truncated HARQ

Abstract

This paper considers incremental redundancy hybrid ARQ (HARQ) transmission over independent block-fading channels. The transmitter, having no knowledge of the instantaneous channel state information (CSI) can or -- allocate the transmission rate knowing the statistics of the channel, or -- adapt the transmissions rates using the outdated CSI, i.e., the one experienced by the receiver in the past transmissions that resulted in a packet decoding failure. Aiming at throughput maximization problems under constraint on the outage probability, we show how to optimize the rate-adaptation and rate-allocation policies using dynamic programming framework. Numerical examples obtained in a Rayleigh-fading channel show that rate adaptation provides notable gains over a rate allocation and non-adaptive HARQ, and, for high SNR, only a few transmissions are necessary to approach closely the ergodic capacity.
No file

Dates and versions

hal-00827950 , version 1 (30-05-2013)

Identifiers

Cite

Leszek Szczecinski, S. Khosravirad, Pierre Duhamel, M. Rahman. Rate Allocation and Adaptation for Incremental Redundancy Truncated HARQ. IEEE Transactions on Communications, 2013, 61 (6), pp.2580 - 2590. ⟨10.1109/TCOMM.2012.041113.120462⟩. ⟨hal-00827950⟩
77 View
0 Download

Altmetric

Share

Gmail Facebook X LinkedIn More