Power allocation for HARQ-IR systems under QoS constraints and limited feedback

To, Duc and Nguyen, Huan X. and Vien, Quoc-Tuan and Huang, Li-Ke (2015) Power allocation for HARQ-IR systems under QoS constraints and limited feedback. IEEE Transactions on Wireless Communications, 14 (3). pp. 1581-1594. ISSN 1536-1276

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Abstract

This paper investigates power allocation for reliable downlink transmission in cellular networks subject to quality-ofservice (QoS) constraints. The reliability of data transmissions is assured by hybrid automatic repeat request protocol with incremental redundancy (HARQ-IR). By developing and evaluating the effective throughput of the HARQ-IR protocol for the downlink transmission under buffer-limited QoS constraints, we propose a novel adaptive power allocation algorithm to efficiently exploit the available resources when only limited channel state information (CSI) is available. The proposed algorithm, based on monotonic optimisation, allows near-optimal performance to be achieved with reasonably low complexity.

Item Type: Article
Research Areas: A. > School of Science and Technology > Computer Science > SensoLab group
A. > School of Science and Technology > Computer and Communications Engineering
Item ID: 18768
Useful Links:
Depositing User: Quoc-Tuan Vien
Date Deposited: 19 Jan 2016 10:32
Last Modified: 13 Oct 2016 14:38
URI: http://eprints.mdx.ac.uk/id/eprint/18768

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